diff --git a/plugins/dynamix/DiskList.page b/plugins/dynamix/DiskList.page
index fb4e22259..2f376b723 100644
--- a/plugins/dynamix/DiskList.page
+++ b/plugins/dynamix/DiskList.page
@@ -3,8 +3,8 @@ Title="Disk Shares"
 Cond="$var['fsState']=='Started' && $var['shareDisk']!='no'"
 ---
 <?PHP
-/* Copyright 2005-2016, Lime Technology
- * Copyright 2012-2016, Bergware International.
+/* Copyright 2005-2017, Lime Technology
+ * Copyright 2012-2017, Bergware International.
  *
  * This program is free software; you can redistribute it and/or
  * modify it under the terms of the GNU General Public License version 2,
@@ -16,8 +16,12 @@ Cond="$var['fsState']=='Started' && $var['shareDisk']!='no'"
 ?>
 <script>
 function displayDisks(all) {
-  if (all == 'yes') $('#disk_list').html("<tr><td colspan='8' style='text-align:center'><i class='fa fa-spinner fa-spin icon'></i>Please wait... computing disk shares!</td></tr>");
-  $.get('/webGui/include/DiskList.php',{compute:all,path:'<?=$path?>',prev:'<?=$prev?>',scale:'<?=$display['scale']?>',number:'<?=$display['number']?>'},function(data){
+  if (all == 'yes') {
+    $.cookie('ssz','ssz',{path:'/'});
+    $('#disk_list').html("<tr><td colspan='8' style='text-align:center'><i class='fa fa-spinner fa-spin icon'></i>Please wait... computing disk shares!</td></tr>");
+  }
+  $.get('/webGui/include/DiskList.php',{compute:all,path:'<?=$path?>',scale:'<?=$display['scale']?>',number:'<?=$display['number']?>',fill:$.cookie('ssz')},function(data){
+    $.removeCookie('ssz',{path:'/'})
     $('#disk_list').html(data);
     $('#compute-disks').prop('disabled',!data || data.indexOf('colspan=')!=-1);
   });
diff --git a/plugins/dynamix/FlashInfo.page b/plugins/dynamix/FlashInfo.page
index 49fa0dea7..05be83aa8 100644
--- a/plugins/dynamix/FlashInfo.page
+++ b/plugins/dynamix/FlashInfo.page
@@ -2,8 +2,8 @@ Menu="Flash"
 Title="Flash Device Settings"
 ---
 <?PHP
-/* Copyright 2005-2016, Lime Technology
- * Copyright 2012-2016, Bergware International.
+/* Copyright 2005-2017, Lime Technology
+ * Copyright 2012-2017, Bergware International.
  *
  * This program is free software; you can redistribute it and/or
  * modify it under the terms of the GNU General Public License version 2,
@@ -13,6 +13,32 @@ Title="Flash Device Settings"
  * all copies or substantial portions of the Software.
  */
 ?>
+<script>
+function cleanUp(zip) {
+  if (document.hasFocus()) {
+    $('input[value="Creating Flash backup..."]').val('Flash backup').prop('disabled',false);
+    $('#pleaseWait').hide('slow');
+    $.post('/webGui/include/Download.php',{cmd:'unlink',file:zip});
+  } else {
+    setTimeout(function(){cleanUp(zip);},2000);
+  }
+}
+function backup() {
+  $('input[value="Flash backup"]').val('Creating Flash backup...').prop('disabled',true);
+  $('#pleaseWait').show('slow');
+  $.post('/webGui/include/Download.php',{cmd:'backup'},function(zip) {
+    if (zip) {
+      location = '/'+zip;
+      setTimeout(function(){cleanUp(zip);},6000);
+    } else {
+      $('input[value="Creating Flash backup..."]').val('Flash backup');
+      $('#pleaseWait').hide('slow');
+      swal('Creation error','Insufficient free disk space available','error');
+    }
+  });
+}
+</script>
+
 Flash Vendor:
 : <?=$var['flashVendor'];?>
 
@@ -34,5 +60,10 @@ Flash GUID:
 
 <?endif;?>
 
+> Use *Flash backup* to create a single zip file of the current contents of the flash device and store it locally on your computer.
+
 &nbsp;
-: <input type="button" value="Done" onclick="done()">
+: <input type="button" value="Flash backup" onclick="backup()"><input type="button" value="Done" onclick="done()">
+
+<br><div id="pleaseWait" style="display:none;text-align:center"><span class="red-text strong">Please wait... creating Flash backup zip file (this may take several minutes)</span>
+<br><br><span class="small">Do not leave this page until backup operation is finished</span></div>
diff --git a/plugins/dynamix/ShareList.page b/plugins/dynamix/ShareList.page
index bcdeb80dd..2cab0f48f 100644
--- a/plugins/dynamix/ShareList.page
+++ b/plugins/dynamix/ShareList.page
@@ -3,8 +3,8 @@ Title="User Shares"
 Cond="$var['fsState']=="Started" && $var['shareUser']=='e'"
 ---
 <?PHP
-/* Copyright 2005-2016, Lime Technology
- * Copyright 2012-2016, Bergware International.
+/* Copyright 2005-2017, Lime Technology
+ * Copyright 2012-2017, Bergware International.
  *
  * This program is free software; you can redistribute it and/or
  * modify it under the terms of the GNU General Public License version 2,
@@ -16,8 +16,12 @@ Cond="$var['fsState']=="Started" && $var['shareUser']=='e'"
 ?>
 <script>
 function displayShares(all) {
-  if (all == 'yes') $('#share_list').html("<tr><td colspan='8' style='text-align:center'><i class='fa fa-spinner fa-spin icon'></i>Please wait... computing user shares!</td></tr>");
-  $.get('/webGui/include/ShareList.php',{compute:all,path:'<?=addslashes(htmlspecialchars($path))?>',prev:'<?=addslashes(htmlspecialchars($prev))?>',scale:'<?=$display['scale']?>',number:'<?=$display['number']?>'},function(data){
+  if (all == 'yes') {
+    $.cookie('ssz','ssz',{path:'/'});
+    $('#share_list').html("<tr><td colspan='8' style='text-align:center'><i class='fa fa-spinner fa-spin icon'></i>Please wait... computing user shares!</td></tr>");
+  }
+  $.get('/webGui/include/ShareList.php',{compute:all,path:'<?=addslashes(htmlspecialchars($path))?>',scale:'<?=$display['scale']?>',number:'<?=$display['number']?>',fill:$.cookie('ssz')},function(data){
+    $.removeCookie('ssz',{path:'/'})
     $('#share_list').html(data);
     $('#compute-shares').prop('disabled',!data || data.indexOf('colspan=')!=-1);
   });
diff --git a/plugins/dynamix/include/DiskList.php b/plugins/dynamix/include/DiskList.php
index 10a74ad89..15e0b4fc0 100644
--- a/plugins/dynamix/include/DiskList.php
+++ b/plugins/dynamix/include/DiskList.php
@@ -1,6 +1,6 @@
 <?PHP
-/* Copyright 2005-2016, Lime Technology
- * Copyright 2012-2016, Bergware International.
+/* Copyright 2005-2017, Lime Technology
+ * Copyright 2012-2017, Bergware International.
  *
  * This program is free software; you can redistribute it and/or
  * modify it under the terms of the GNU General Public License version 2,
@@ -11,7 +11,7 @@
  */
 ?>
 <?
-$docroot = $docroot ?: @$_SERVER['DOCUMENT_ROOT'] ?: '/usr/local/emhttp';
+$docroot = $docroot ?: $_SERVER['DOCUMENT_ROOT'] ?: '/usr/local/emhttp';
 require_once "$docroot/webGui/include/Helpers.php";
 
 $shares  = parse_ini_file('state/shares.ini',true);
@@ -22,6 +22,7 @@ $sec_nfs = parse_ini_file('state/sec_nfs.ini',true);
 $sec_afp = parse_ini_file('state/sec_afp.ini',true);
 $compute = $_GET['compute'];
 $path    = $_GET['path'];
+$fill    = $_GET['fill'];
 
 $display           = [];
 $display['scale']  = $_GET['scale'];
@@ -53,9 +54,10 @@ $myDisks = array_filter(array_diff(array_keys($disks), explode(',',$var['shareUs
 
 // Share size per disk
 $ssz2 = [];
-foreach (glob("state/*.ssz2", GLOB_NOSORT) as $entry) {
-  $ssz2[basename($entry, ".ssz2")] = parse_ini_file($entry);
-}
+if ($fill)
+  foreach (glob("state/*.ssz2", GLOB_NOSORT) as $entry) $ssz2[basename($entry, ".ssz2")] = parse_ini_file($entry);
+else
+  exec("rm -f /var/local/emhttp/*.ssz2");
 
 // Build table
 $row = 0;
@@ -93,11 +95,11 @@ foreach ($disks as $name => $disk) {
       echo "<td></td>";
       echo "<td class='disk-$row-1'>".my_scale($sharesize*1024, $unit)." $unit</td>";
       echo "<td class='disk-$row-2'>".my_scale($disk['fsFree']*1024, $unit)." $unit</td>";
-      echo "<td><a href='/update.htm?cmd=$cmd&csrf_token={$var['csrf_token']}' target='progressFrame' title='Recompute...' onclick='$(\".disk-$row-1\").html(\"Please wait...\");$(\".disk-$row-2\").html(\"\");'><i class='fa fa-refresh icon'></i></a></td>";
+      echo "<td><a href='/update.htm?cmd=$cmd&csrf_token={$var['csrf_token']}' target='progressFrame' title='Recompute...' onclick='$.cookie(\"ssz\",\"ssz\",{path:\"/\"});$(\".disk-$row-1\").html(\"Please wait...\");$(\".disk-$row-2\").html(\"\");'><i class='fa fa-refresh icon'></i></a></td>";
       echo "</tr>";
     }
   } else {
-    echo "<td><a href='/update.htm?cmd=$cmd&csrf_token={$var['csrf_token']}' target='progressFrame' onclick=\"$(this).text('Please wait...')\">Compute...</a></td>";
+    echo "<td><a href='/update.htm?cmd=$cmd&csrf_token={$var['csrf_token']}' target='progressFrame' onclick=\"$.cookie('ssz','ssz',{path:'/'});$(this).text('Please wait...')\">Compute...</a></td>";
     echo "<td>".my_scale($disk['fsFree']*1024, $unit)." $unit</td>";
     echo "<td><a href='$path/Browse?dir=/mnt/$name'><img src='/webGui/images/explore.png' title='Browse /mnt/$name'></a></td>";
     echo "</tr>";
diff --git a/plugins/dynamix/include/Download.php b/plugins/dynamix/include/Download.php
index 77a3dfe18..a63e04de8 100644
--- a/plugins/dynamix/include/Download.php
+++ b/plugins/dynamix/include/Download.php
@@ -1,6 +1,6 @@
 <?PHP
-/* Copyright 2005-2016, Lime Technology
- * Copyright 2012-2016, Bergware International.
+/* Copyright 2005-2017, Lime Technology
+ * Copyright 2012-2017, Bergware International.
  *
  * This program is free software; you can redistribute it and/or
  * modify it under the terms of the GNU General Public License version 2,
@@ -11,7 +11,7 @@
  */
 ?>
 <?
-$docroot = $docroot ?: @$_SERVER['DOCUMENT_ROOT'] ?: '/usr/local/emhttp';
+$docroot = $docroot ?: $_SERVER['DOCUMENT_ROOT'] ?: '/usr/local/emhttp';
 $file = $_POST['file'];
 switch ($_POST['cmd']) {
 case 'save':
@@ -36,5 +36,12 @@ case 'diag':
   exec("$docroot/webGui/scripts/diagnostics $anon ".escapeshellarg("$docroot/$file"));
   echo "/$file";
   break;
-}
+case 'unlink':
+  $backup = readlink("$docroot/$file");
+  exec("rm -f '$docroot/$file' '$backup'");
+  break;
+case 'backup':
+  echo exec("$docroot/webGui/scripts/flash_backup");
+  break;
+}  
 ?>
diff --git a/plugins/dynamix/include/ShareList.php b/plugins/dynamix/include/ShareList.php
index 0b83b9f08..cc4840423 100644
--- a/plugins/dynamix/include/ShareList.php
+++ b/plugins/dynamix/include/ShareList.php
@@ -1,6 +1,6 @@
 <?PHP
-/* Copyright 2005-2016, Lime Technology
- * Copyright 2012-2016, Bergware International.
+/* Copyright 2005-2017, Lime Technology
+ * Copyright 2012-2017, Bergware International.
  *
  * This program is free software; you can redistribute it and/or
  * modify it under the terms of the GNU General Public License version 2,
@@ -11,7 +11,7 @@
  */
 ?>
 <?
-$docroot = $docroot ?: @$_SERVER['DOCUMENT_ROOT'] ?: '/usr/local/emhttp';
+$docroot = $docroot ?: $_SERVER['DOCUMENT_ROOT'] ?: '/usr/local/emhttp';
 require_once "$docroot/webGui/include/Helpers.php";
 
 $shares  = parse_ini_file('state/shares.ini',true);
@@ -22,6 +22,7 @@ $sec_nfs = parse_ini_file('state/sec_nfs.ini',true);
 $sec_afp = parse_ini_file('state/sec_afp.ini',true);
 $compute = $_GET['compute'];
 $path    = $_GET['path'];
+$fill    = $_GET['fill'];
 
 $display           = [];
 $display['scale']  = $_GET['scale'];
@@ -60,9 +61,10 @@ $myDisks = array_filter(array_diff(array_keys($disks), explode(',',$var['shareUs
 
 // Share size per disk
 $ssz1 = [];
-foreach (glob("state/*.ssz1", GLOB_NOSORT) as $entry) {
-  $ssz1[basename($entry, ".ssz1")] = parse_ini_file($entry);
-}
+if ($fill)
+  foreach (glob("state/*.ssz1", GLOB_NOSORT) as $entry) $ssz1[basename($entry, ".ssz1")] = parse_ini_file($entry);
+else
+  exec("rm -f /var/local/emhttp/*.ssz1");
 
 // Build table
 $row = 0;
@@ -97,11 +99,11 @@ foreach ($shares as $name => $share) {
       echo "<td></td>";
       echo "<td class='share-$row-1'>".my_scale($disksize*1024, $unit)." $unit</td>";
       echo "<td class='share-$row-2'>".my_scale($disks[$diskname]['fsFree']*1024, $unit)." $unit</td>";
-      echo "<td><a href='/update.htm?cmd=$cmd&csrf_token={$var['csrf_token']}' target='progressFrame' title='Recompute...' onclick='$(\".share-$row-1\").html(\"Please wait...\");$(\".share-$row-2\").html(\"\");'><i class='fa fa-refresh icon'></i></a></td>";
+      echo "<td><a href='/update.htm?cmd=$cmd&csrf_token={$var['csrf_token']}' target='progressFrame' title='Recompute...' onclick='$.cookie(\"ssz\",\"ssz\",{path:\"/\"});$(\".share-$row-1\").html(\"Please wait...\");$(\".share-$row-2\").html(\"\");'><i class='fa fa-refresh icon'></i></a></td>";
       echo "</tr>";
     }
   } else {
-    echo "<td><a href='/update.htm?cmd=$cmd&csrf_token={$var['csrf_token']}' target='progressFrame' onclick=\"$(this).text('Please wait...')\">Compute...</a></td>";
+    echo "<td><a href='/update.htm?cmd=$cmd&csrf_token={$var['csrf_token']}' target='progressFrame' onclick=\"$.cookie('ssz','ssz',{path:'/'});$(this).text('Please wait...')\">Compute...</a></td>";
     echo "<td>".my_scale($share['free']*1024, $unit)." $unit</td>";
     echo "<td><a href='$path/Browse?dir=/mnt/user/".urlencode($name)."'><img src='/webGui/images/explore.png' title='Browse /mnt/user/".urlencode($name)."'></a></td>";
     echo "</tr>";
diff --git a/plugins/dynamix/scripts/flash_backup b/plugins/dynamix/scripts/flash_backup
new file mode 100755
index 000000000..777cfb1d0
--- /dev/null
+++ b/plugins/dynamix/scripts/flash_backup
@@ -0,0 +1,46 @@
+#!/usr/bin/php -q
+<?PHP
+/* Copyright 2005-2017, Lime Technology
+ * Copyright 2012-2017, Bergware International.
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License version 2,
+ * as published by the Free Software Foundation.
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ */
+?>
+<?
+$docroot = $docroot ?: $_SERVER['DOCUMENT_ROOT'] ?: '/usr/local/emhttp';
+$var = file_exists('/var/local/emhttp/var.ini') ? parse_ini_file('/var/local/emhttp/var.ini') : [];
+$dir = ['system','appdata','isos'];
+$out = ['prev','previous','syslinux'];
+
+$server = isset($var['NAME']) ? str_replace(' ','_',strtolower($var['NAME'])) : 'tower';
+$mydate = date('Ymd-Hi');
+$backup = "$server-flash-backup-$mydate.zip";
+
+$used = exec("df /boot|awk 'END{print $3}'") * 1.5;
+$free = exec("df /|awk 'END{print $4}'");
+if ($free > $used) $zip = "/$backup"; else {
+  foreach ($dir as $share) {
+    if (!is_dir("/mnt/user/$share")) continue;
+    $free = exec("df /mnt/user/$share|awk 'END{print $4}'");
+    if ($free > $used) {$zip = "/mnt/user/$share/$backup"; break;}
+  }
+}
+if ($zip) {
+  chdir("/boot");
+  foreach (glob("*",GLOB_NOSORT+GLOB_ONLYDIR) as $folder) {
+    if (in_array($folder,$out)) continue;
+    exec("zip -qr ".escapeshellarg($zip)." ".escapeshellarg($folder));
+  }
+  foreach (glob("*",GLOB_NOSORT) as $file) {
+    if (is_dir($file)) continue;
+    exec("zip -q ".escapeshellarg($zip)." ".escapeshellarg($file));
+  }
+  symlink($zip,"$docroot/$backup");
+  echo $backup;
+}
+?>
\ No newline at end of file
diff --git a/plugins/dynamix/styles/default-azure.css b/plugins/dynamix/styles/default-azure.css
index ec4cc2254..96c58cb3c 100644
--- a/plugins/dynamix/styles/default-azure.css
+++ b/plugins/dynamix/styles/default-azure.css
@@ -52,8 +52,8 @@ form+p{display:none}
 #nav-block{position:absolute;top:0;bottom:12px;color:#5D6833;white-space:nowrap;float:left;overflow-y:scroll;direction:rtl}
 #nav-block>div{direction:ltr}
 #nav-item{width:24px;text-align:left;padding:14px 24px 14px 16px;border-bottom:#42453E 1px solid;font-size:18px;overflow:hidden}
-#nav-item:hover{width:150px;color:#5D6833;background:#ABC056;border-bottom:none;-webkit-transition:all 0.25s ease-in-out;transition:all 0.25s ease-in-out}
-#nav-item:hover a{color:#5D6833;background:#ABC056;-webkit-transition:all 0.3s ease-in-out;transition:all 0.3s ease-in-out}
+#nav-item:hover{width:150px;color:#5D6833;background:#ABC056;border-bottom:none;-webkit-transition:all 0.2s ease-in-out;transition:all 0.2s ease-in-out}
+#nav-item:hover a{color:#5D6833;background:#ABC056}
 #nav-item img{display:none}
 #nav-item a{color:#A6A7A7;text-decoration:none}
 #nav-item a:before{font-family:docker-icon,fontawesome;font-size:26px;margin-right:25px}
@@ -68,8 +68,8 @@ form+p{display:none}
 #nav-item a[href='/Apps']:before{content:'\f0db'}
 #nav-item a[href='/Stats']:before{content:'\f1fe'}
 #nav-item a[href='/Tools']:before{content:'\f0ad'}
-#nav-item.active,#nav-item.active a{color:#5D6833;background:#ABC056}
-#nav-item.HelpButton.active:hover{background:#ABC056}
+#nav-item.active,#nav-item.active a{color:#5D6833;background:#ABC056;font-size:18px}
+#nav-item.HelpButton.active:hover{background:#ABC056;font-size:0}
 #nav-item.HelpButton.active{background:#121510}
 #nav-item.HelpButton a:before{content:'\f059'}
 #nav-item.FeedbackButton a:before{content:'\f075'}
diff --git a/plugins/dynamix/styles/default-gray.css b/plugins/dynamix/styles/default-gray.css
index c36fa905f..242e54086 100644
--- a/plugins/dynamix/styles/default-gray.css
+++ b/plugins/dynamix/styles/default-gray.css
@@ -52,8 +52,8 @@ form+p{display:none}
 #nav-block{position:absolute;top:0;bottom:12px;color:#5D6833;white-space:nowrap;float:left;overflow-y:scroll;direction:rtl}
 #nav-block>div{direction:ltr}
 #nav-item{width:24px;text-align:left;padding:14px 24px 14px 16px;border-bottom:#42453E 1px solid;font-size:18px;overflow:hidden}
-#nav-item:hover{width:150px;color:#5D6833;background:#ABC056;border-bottom:none;-webkit-transition:all 0.25s ease-in-out;transition:all 0.25s ease-in-out}
-#nav-item:hover a{color:#5D6833;background:#ABC056;-webkit-transition:all 0.3s ease-in-out;transition:all 0.3s ease-in-out}
+#nav-item:hover{width:150px;color:#5D6833;background:#ABC056;border-bottom:none;-webkit-transition:all 0.2s ease-in-out;transition:all 0.2s ease-in-out}
+#nav-item:hover a{color:#5D6833;background:#ABC056}
 #nav-item img{display:none}
 #nav-item a{color:#A6A7A7;text-decoration:none}
 #nav-item a:before{font-family:docker-icon,fontawesome;font-size:26px;margin-right:25px}
@@ -69,8 +69,8 @@ form+p{display:none}
 #nav-item a[href='/Stats']:before{content:'\f1fe'}
 #nav-item a[href='/Tools']:before{content:'\f0ad'}
 #nav-item.active,#nav-item.active a{color:#5D6833;background:#ABC056}
-#nav-item.HelpButton.active:hover{background:#ABC056}
-#nav-item.HelpButton.active{background:#121510}
+#nav-item.HelpButton.active:hover{background:#ABC056;font-size:18px}
+#nav-item.HelpButton.active{background:#121510;font-size:0}
 #nav-item.HelpButton a:before{content:'\f059'}
 #nav-item.FeedbackButton a:before{content:'\f075'}
 #nav-item.InfoButton a:before{content:'\f05a'}
diff --git a/plugins/dynamix/template.php b/plugins/dynamix/template.php
index fd10f33c6..d331e7779 100644
--- a/plugins/dynamix/template.php
+++ b/plugins/dynamix/template.php
@@ -58,10 +58,6 @@ $myPage = $site[basename($path)];
 $pageroot = $docroot.'/'.dirname($myPage['file']);
 $update = true; // set for legacy
 
-// hack: maybe delete stale share size files
-if ($myPage['name'] != 'Shares')
-  foreach(glob('/var/local/emhttp/*.ssz*', GLOB_NOSORT) as $sszfile) @unlink($sszfile);
-
 // Giddyup
 require_once "$docroot/webGui/include/DefaultPageLayout.php";
 ?>