I installed xbench to see how my MBP faired. The xBench results gave me a result of 47.81 I think this is because I only get 11.27 in my User Interface Test. Why is this number so low and should I be worried about it? I saw numbers over 200 or even 300 in the User Interface Test on a Macbook Pro 2.33 GHZ. Why is mine so low? What does this mean?