Seems kinda strange, since XABRE does have Pixel Shader suport... (Dx 8.1)
But...who knows what SIS did with it's drivers?
By the way... a friend of mine uses the same card (xabre 600, or something like) and dont seem to have this problem...
Ok, legacy pixel pipeline fixed and stuff, but maybe if you use older (or newer) drivers the problem could be fixed without it, eh?