Hello, I move my site from dedicated server on iweb.com to cloudsites on rackspace. on both server I get errors: PHP Warning: xcache_set() [<a href='function.xcache-set'>function.xcache-set</a>]: xcache.var_size is either 0 or too small to enable var data caching in /homedir/www/wp-content/plugins/w3-total-cache/lib/W3/Cache/Xcache.php on line 41 and PHP Warning: xcache_unset() [<a href='function.xcache-unset'>function.xcache-unset</a>]: xcache.var_size is either 0 or too small to enable var data caching in homedir/www/wp-content/plugins/w3-total-cache/lib/W3/Cache/Xcache.php on line 77 (even with xcache.var_size = 376M on iweb.com). on rackspace (my current host) I can not edit php.ini and xcache.ini Would like your help with this one, it is getting about 600 error a MINUTE!!! thx for your time