I installed a 9800 pro replacign a geforce 4. I used the manual add remove and drivercleaner as well. I installed the latest ATI drivers. But, when I try to run 3dmark05, it gives me an error: IDirect3DDevice9:: Present failed: Device lost (DEDERR_DEVICELOST) This always happens in the middle of the 3rd test. I am not sure what this means. I have cleaned out the old drivers twice already. Also, 3dmark05 says my "AGP Memory" is set to 64 mb. Should I set it to 256 mb to match my 256 mb 9800 pro? Thanks