Well for some reason, there's a virus spreading like wildfire. It's fairly similar to all of the other recent email viruses. It pretends like it's an email error message with a binary attachment. The attachment is a ZIP file with the virus in it rather than an EXE, SCR, or PIF attached directly, so virus scanners are having trouble finding it. When you open it, it starts your run of the mill spoof-your-email-and-send-to-everyone-on-your-computer worm. It apparently will try to DDOS attack sco.com on Feb 1 as well.
Anyway, I made this a news item since it seems a stupid number of stupid people are opening these attachments. Don't be stupid.
Thanks to http://www.shacknews.com for the info