deepblue,

try an other virus scanner. If you aren´t able to find it - this virus might be some king of stealth virus. The only way to find it is to reboot your system with a clean virus scanner disk, the most scanners offers the option to create such a disk.

I hope this helps.

@Peerless
I don´t thinks it is the same worm, deepblue said that he lost files. It sounds more like a virus.

Morgwen