Might want to recheck your ubb control panel settings.
Starting with:
Control Panel » Primary Settings-Advanced
Look for referrer check there are two settings.
Then double check:
Control Panel » DB, Paths & URLs

Also a url to your site would be helpful as well as what version ubb you are using.

Last edited by Ruben; 11/09/2011 5:05 PM. Reason: Added comment
Blue Man Group
There is no such thing as stupid questions. Just stupid answers