I heard of that problem before. I did a search in the Tech lib and Apothecary but came up empty. My guess is video card problem. If you can post some info about your PC here, someone may be able to help.

PC info such as: OS, MEM, video card info and driver version, DX version,... For those info, you can run dxdiag (Start - Run - type in dxdiag - click OK) and copy the info from 1st page (your system info), the Display page (video card info) and may be the Sound page (sound card info).