My computer is experiencing video pixelization (little dots and stripe paterns), which worsens with time. It happens immediately upon boot up (cold). Also, when I run an old DOS game of Backgammon it worsens quicker. Initially I can improve it but not completely fixing the pixelization by 'Refresh', change the desktop picture, and log off/on.
I have swapped the monitor with a functioning monitor, disabled the display adapter, rolled back the driver, changed resolution, adjusted the hardware accelleration to 0, disabled mouse pointer shadow, disabled write combing, opened the computer and inspected the graphics card (the fan was alittle wobbly but seemed OK), cleaned the dust (hardly none at all). The computer is still experiencing the pixelization.
I have not uninstalled the 128MB DDR ATI Radeon 9800 Pro or uninstalled the driver (I don't know how).
Is there a way to check to see if the problem is a driver or a adapter? I have access to a Dell 4800. It may have an adapter in it but I'm not sure what one. Would swapping the graphics card from the 4800 help the diagnosis process? I don't want to do a 'repair' of Windows XP if it isn't the problem. Any helpill be greatly appreciated.