The reason ONBOARD video cards suck is because...
 

...they can't render transparency! Anyone with a remotely recent computer and a not-shitty video card should be able to use this skin without problem.

I'm using FireFox-2.0, and I tried it in both IE6 & IE7 without problems.

Laptop Specs:

PentiumM 1.8GHz / 512MB RAM / Widescreen 1280*800

Nothing fancy hardware wise... it's all in how you run your computer :)

Uh, no. It's fixed now because they removed the transparency. I have a 7900GTX video card and a E6600 CPU and in IE7/IE6 the skin was making IE7/IE6 take up 80% of CPU resources. It had relatively little to do with the video card.

you must be a poor sorry bastard having a onboard video card:-)

It should however not be a problem rendering transparency with an onboard card. But because they are so slow compared to real video cards they have huge problems rendering just about anything when you have motion.