Full Tilt Software is Non-Functional, Help Please

[Nsight7]

Cross-posted in the Computer Technical Help Forums (because I am not 100% convinced it is a software issue, though it likely is).

Basically, my Full Tilt client doesn't want to work (all other poker clients I run work). It is very laggy and when I open up a table, the buttons and chat-window are there, but the table screen is literally just black. Any thoughts/similar problems?

If the information was needed, my OS is Windows XP, 512MB DDR RAM, PNY Nvidia 6200 128 MB DDR DVI/VGA vid card, Athlon 3200+ XP, et cetera. It is relatively old computer, in the range of 5 years, but it is still running pretty damn good.