As you can see in this picture, the HUD and some other things such as the tutorial signs go completely nuts after a short while playing. What the picture doesn't emphasize is how these parts of the hud flash around wildly, changing shape and flying all over the place rapidly. I've tried the steps outlined in the FAQs i've seen.

I've edited the registry, I've set compatibility mode on, and I have the latest drivers, as well as the latest version of java. Is there anything I may be missing that could cause such strange graphical distortions?

My computer should be able to run this.

2.51 processor, 128 mb video card. 1 gig of ram.

Before this happened, I had the invisible character body glitch. Changing the registry and putting compatibility mode on corrected this.