Try running adaware/spybot search & destroy in safe mode.Getting into safe mode
How to run adaware/spybot from Win2K/XP "safe mode with command prompt"
At the C:\ prompt type the following:-
C:\progra~1\spybot~1\spybotsd.exe /autocheck /autofix
If your using 98*Grinler you won't need the above as you'll be able to use the normal program menu.
If the above doesn't solve your problem download HijackThis
, run it save your log, don't do anything else and post it in the link below. Somebody will look at our log and tell you have to solve your problem.Post hijackthis log here