3DMarks physics score recently dropped and can't raise

So I decided to run 3Dmarks yesterday just for fun when I noticed a score around 8500 with a physics score of 6500ish.

Prior to that I had a 3Dmarks score of 11500+ http://www.3dmark.com/3dm11/5953623

The above results was a 3770K @ 4.5 with (1) 7970 Vapor X @ 1230 / 1635 on stock voltage and 8 GB of system ram. Power supply is 700w.

I tried returning my computer back to stock settings, and also my video card with no improvements or major changes. No matter what I do I cannot raise my Physics score.

The only thing I have done is followed this Windows 7 Tweak/Performance guide - http://www.ocztechnologyforum.com/forum/showthread.php?...*-Windows-7-Ultimate-Tweaks-amp-Utilities-*

Can anything I changed in the guide be causing this?

Any suggestions would be appreciated. Thanks in advance.