It was doing it before I installed the ffdshow filters. I'm gonna give up I think - either upgrade to a later version of Windows or go to Linux and use MythTV. Thanks for the help anyway guys, much appreciated.
haha...yeah I know what you mean - tried for 3 days getting myth going before giving up and going to this. Everything works in gbpvr under win2000 - except LiveTV. Crashes at laucnh every time no matter what I try. Must be a Win2000 thing. Gave up getting myth going under OpenSuse so am taking the easy route and will try mythbuntu tonight. Will probably go back to gbpvr when I get a new windows box.