because I had all of them running and updated and I still caught: Trojan.Dos.Rebootpc.B I knew something was wrong for the last few days because the sytem was sluggish and CPU useage was high. I ran AVG antispyware, avast! (real-time), Spyware Terminator with Clam AV (on-demand and real time), superantispyware, Ad-aware, a2, Windows defender. They all found cookies. I then went to the BitDefender website and it found this Trojan. Can anyone comment on this whole thing ? More importantly, since I can't trust what I have running on my system, is there a GREAT website that will scan a file and do a better job than my software? I got the trojan from a .exe file that I downloaded from what I thought was a reputable download site.