There's a virus or spyware or something going around that I've heard has
hit some of our players. It hit me yesterday/this morning, in fact. The
symptom is that when you start up your computer you'll see a message
about how the Remote Procedure Call (RPC) has unexpectedly terminated
and how it will reboot your system in 60 seconds.

The Symantec site has a page to help deal with this which I
have broken into two lines -
http://securityresponse.symantec.com/avcenter/
venc/data/w32.blaster.worm.html

That's the info page. The direct download to fix this is:
http://securityresponse.symantec.com/avcenter/
FixBlast.exe

(again, that's split onto two lines, so combine into one!)

Penned by my hand on the 8th of Mayan, in the year 341 AF.