new dell 8250 w/ xp home was sluggish so deleted temp int. files etc. and ran virus scan w/ mcafee. Mcafee said had [email protected] virus. Quarantined and deleted file and ran another scan w/ no sign of virus, however comp. remains extremely slow and programs don't respond and have to restart. Then it will work ok for a few minutes and then back to not responding. I had been d-loading a couple of movies and songs from winmx which seems to coincide w/ start of prob. but not sure. On cable modem and doesn't seem to be any effect on internet sites? Any ideas?