That doesn't sound good at all! Unfortunately, this sort of thing is very difficult to debug remotely. What system and version of Windows do you have?
I have an acer TravelMate 7730 with a GeForce 9300m gs 256mb GPU and an intel Core2 Duo T5870 @ 2.00GHz running Windows 7
Further questions - is that a 64-bit Windows 7 Version? Which Edition of Windows 7 is that?
Thanks!