I've backed up the registry, and used Spybot S&D
Windows XP machine. I use primarily Forefox.
Logfile of Trend Micro HijackThis v2.0.2
Scan saved at 7:58:45 PM, on 2/4/2010
Platform: Windows XP SP3 (WinNT 5.01.2600)
MSIE: Internet Explorer v7.00 (7.00.6000.16827)
Boot mode: Normal
Running...