Microsoft has released patches to the critical vulnerability previously mentioned. I haven't gotten it via auto-update yet, so if you haven't either:
http://www.microsoft.com/technet/security/Bulletin/MS06-001.mspx Download it, run it. Hopefully this'll stave off the worst of it.
If you ran the unofficial patch, there's instructions at
http://isc.sans.org/diary.php on how to undo the old one first.