When I do a searches across all forums, I get this: Microsoft OLE DB Provider for SQL Server error '80040e31' Timeout expired /forum/search.asp, line 349 Doesn't look good for a website dedicated to SQL Server Performance.
Thanks for taking the time to report this Simon. I recycled the app pool and it looks to be fixed. As an alternative you can always use the main site search function and add 'forum' to the query which should give a similar result.