MadMonkey: Spybot has the option to "run in the background" or "live protection" or something like that - something I NEVER use, but might be what (V) is talking about it running at strange times.

I bring it up occasionally, look for updates, and let it run. That and Ad-aware (again, don't let it run in the background - just run the scan mode when I need it - no "live" protection.)

While working on PC's, I will also load & run Tuneup Utilities.

http://download.cnet.com/TuneUp-Utilities-2009/3000-2094_4-10206416.html?cdlPid=10980955


It is a free 30 day trial, but I usually just run it a few times (fix & run again) then delete it from the system. Czuch - maybe try to run that and see if it finds anything.

EDITED TO ADD: For the TuneUP Utilities, I run the "1-Click Maintenance"