Norton Antivirus 2009
Windows Firewall
Windows Vista Home with the Vista service pack 2
IE7
seems like over the past week or so, I periodically get a bogus notification that I need to scan for virus using some phoney virus scan
it closes out my browser and leaves a "window requesting" I scan. Then before I can close it out (using task manager), another window pops up showing multitudes of trojans, virus, etc
What a scanner it must be to get all that done in 5 seconds 
When I check my browser history, i see some entry for rootscan.info
But on a serious note, does Norton have something in the definitions to block this from coming up? I googled the issue and it appears that rootscan.info, microscano.info, and andoscan.info are all linked to this