Error with style after upgrade

Hey, im getting this error in the httpd logs after the upgrade, its happening on 2 servers and causes the whole pages to be completly messed up, does anyone know how to fix this?

[Mon Feb 13 19:57:12 2012] [error] [client] File does not exist: /var/www/html/admin/common/mstyle_autogen_1326689716.css, referer: http:///admin/config.php

hmm, have fixed that one, but now the menu is broken?

see the image