Thanks for all of the tips. I have been using CCleaner almost daily for over a year now. Why do you suggest to Uncheck "Cookies" under "Internet Explorer"? I always go to CCleaner's Options > Cookies and manually choose which to keep. As for alternative browsers I use Firefox occasionally but prefer IE. I would switch to Opera immediately (I have used v7 & v8 off and on in the past) if only they would support RoboForm.

For a firewall & AV I use ESET's Smart Security (NOD32 antivirus). I typically run Spybot-S&D once a month or so. I also have SpywareBlaster. I do a manual check for Windows Updates the 2nd Tuesday of every month.

I will "flush" the XP system Restore Points today.