I moved my sites to a different host (aside: VPS makes a big difference over shared hosting!), and for one of the sites, I get this error message until the cache is built, and then again after clearing the cache:<br><br><span style="font-family: courier new,monospace;">Notice: unserialize() [function.unserialize]: Error at offset 2 of 21 bytes in variable_initialize() (line 749 of myhomedirectory/www/includes/bootstrap.inc).</span><br>
<br>I searched the web, but didn&#39;t find anything that could help me. <br>Any suggestions on how to find the problem? <br>I am running drupal 7, and have listed the installed modules below. <br><br>Thanks, Ursula<br><br>
 <span style="font-family: courier new,monospace;">Backup and Migrate  7.x-2.1            7.x-2.1           Up to date </span><br style="font-family: courier new,monospace;"><span style="font-family: courier new,monospace;"> Drupal core         7.0                7.0               Up to date </span><br style="font-family: courier new,monospace;">
<span style="font-family: courier new,monospace;"> CAPTCHA             7.x-1.0-alpha2     7.x-1.0-alpha2    Up to date </span><br style="font-family: courier new,monospace;"><span style="font-family: courier new,monospace;"> Chaos tool suite    7.x-1.0-alpha4     7.x-1.0-alpha4    Up to date </span><br style="font-family: courier new,monospace;">
<span style="font-family: courier new,monospace;"> Date                7.x-1.0-alpha2     7.x-1.0-alpha2    Up to date </span><br style="font-family: courier new,monospace;"><span style="font-family: courier new,monospace;"> Google Analytics    7.x-1.2            7.x-1.2           Up to date </span><br style="font-family: courier new,monospace;">
<span style="font-family: courier new,monospace;"> Link                7.x-1.0-alpha3     7.x-1.0-alpha3    Up to date </span><br style="font-family: courier new,monospace;"><span style="font-family: courier new,monospace;"> Location Map        7.x-1.0            7.x-1.0           Up to date </span><br style="font-family: courier new,monospace;">
<span style="font-family: courier new,monospace;"> Meta tags quick     7.x-1.2            7.x-1.2           Up to date </span><br style="font-family: courier new,monospace;"><span style="font-family: courier new,monospace;"> Page Title          7.x-2.4-beta1      7.x-2.4-beta1     Up to date </span><br style="font-family: courier new,monospace;">
<span style="font-family: courier new,monospace;"> Pathauto            7.x-1.0-beta1      7.x-1.0-beta1     Up to date </span><br style="font-family: courier new,monospace;"><span style="font-family: courier new,monospace;"> Redirect            7.x-1.0-beta1      7.x-1.0-beta1     Up to date </span><br style="font-family: courier new,monospace;">
<span style="font-family: courier new,monospace;"> Token               7.x-1.0-beta1      7.x-1.0-beta1     Up to date </span><br style="font-family: courier new,monospace;"><span style="font-family: courier new,monospace;"> Views               7.x-3.0-beta3      7.x-3.0-beta3     Up to date </span><br style="font-family: courier new,monospace;">
<span style="font-family: courier new,monospace;"> Zen                 7.x-3.x-dev        7.x-3.x-dev       Up to date </span>