Try going into 'safe mode' and running your scans. Pressing the F8 key while booting up will bring a selection to enter into safe mode. This eliminates any other startup programs that might be interfering. Here is a list of free online scans that you can also try: A-Squared On Line Trojan Scan -- http://www.windowsecurity.com/trojanscan/
BitDefender On Line Scan -- http://www.bitdefender.com/scan8/ie.html
Ewido On Line Scan -- http://www.ewido.net/en/onlinescan/
F-Secure On Line Scan -- http://support.f-secure.com/enu/home/ols.shtml
House Call Anti-Virus http://housecall.trendmicro.com/housecall/start_corp.asp
My computer works fine, but when I try to run McAfee's or spybot I can hear my computer speed up and it's like a car going from higher speed to higher until the computer freezes. I then have to reboot. Anybody have the same problem? This just started, I used these programs before and had no problems. I use a emachine, Windows XP, AMD Athlon 64 processor 3400+ 2GB memory.