Ah. Yeah, this SSE instruction is supported on new CPU's you see, and its supposed to speed programs up by using a new instruction set, though some older computers don't have it.
In this case, the only way to get it to work I'm afraid, would be to update your motherboard/CPU
Pretty stupid though.
I've seen about 3 programs that need this instruction set so far,
3D Mark 05
Now this I guess...