"Notice: unserialize() [function.unserialize]: Error at offset 10301 of 11637 bytes on views_db_object->load_row()"
I have encountered the same issue and thus far to resolve but I found this article. 

http://www.zyxware.com/articles/3337/drupal-errors-drupal-views-notice-unserialize-function-unserialize-error-at-offset-1009-of-1036-bytes-in-views-db-

so...i researched some more and found this solution. I added this line to bootstrap.inc

$data = preg_replace('!s:(\d+):"(.*?)";!e', "'s:'.strlen('$2').':\"$2\";'", $variable-&gt;value);  
$variables[$variable-&gt;name] = unserialize($data);


in the variable_init function