From your description of the problem, a new video card may not be the solution, especially since you have the same problem with Poser. It may be a system/memory timing problem which you might need a professional to answer. I have not heard good things about XP or AMD, and my own system is Win2000 with Intel x686. Somebody has written some benchmark tests for poser, I think maybe Dr. Geep, that mught give you a start on narrowing down the problem.