Attached is a screen capture of a blank .txt file. As you can see there are lots of blue bits all over it. This is not just seen on .txt files, it appears of all of the open windows. It's just that it's easier to see on a blank, white background.
FYI - I am running Windows Xp Home edition with SP3. I've got 200Gb hard drive with 2Gb RAM. About 6 or 9 months ago I swapped from the motherboard video card to an NVIDIA GeForce4 MX4000 graphics card that I took out of an old machine.
When I swapped over to the NVIDIA I disabled the motherboard video card but now cannot find it again to re-enable it to check to see if it's the NVIDIA that has gone down.
Help and comments would be greatly appreciated.