[UKBusinessLive]

In my experience, these problems happen when we submit an illegal or invalid query to SQL Server.

Do you have to access to CPanel ?? Perhaps try and repair the forum database and see if that does the trick??

There's actually a number of reasons why Stack Overflow might of happened, but of course the most common reason is caused when new programs are installed over all old ones that are not completely uninstalled 100%, causing registry pile ups and of course, getting error messages. Another reason, is damage that's been done by malware programs, attaching themselves to your PC and wrecking havoc, deleting crucial files from your PC. It may also be to do with zend optimizer and what version of PHP your running, so you treally need to check all these.

Also Make sure your IIS application protection is on high/isolated. and Add the ISAPI module to your ISAPI filter section.