Yesterday, the forums got exploited by a bot, which added two hidden iframes to the top and bottom of the page.
One of the links was to a page using the WMF exploit. The other went to a page using a java or javascript exploit.
If you were not running anti-virus, and you visited the forums yesterday or today, I suggest you download something like
Avast and let it run a full scan.
If anyone think's they have stuff left over from it on their systems, and want help cleaning it, let me know, either on IRC or the forums.