Issue with 3DMark06 score

[fender]

Specs are:

Q6600 @ 2.4Ghz
EVGA GTX 260 SSC
Gigabyte EP45-UD3P
2GB PC2 6400 G.Skill RAM

I got a score of 12964 running 3DMark06 - does that seem normal? The strange thing is that when I ran it right after uninstalling the ATI drivers I got a score of around 13050. Now that I've formated I get a lower score...

I should also mention that the SM2.0 score is 5110 and the SM3.0 score is 6143.

Both of them seem way too low.

 

[fender]

Alright, I just overclocked the Q6600 to 3.0Ghz and threw in another 2GB of RAM and now my score is 15519 with an SM2.0 of 6289 and an SM3.0 of 6806 which is a lot better.

The first question still remains though; why did I score lower after a reformat?

 

[lowteckh]

ZOMGGGGG a score difference of 86!!! Whatever will we do!? Like last week when I drove up north I got 28mpg but the week before I got 27.8mpg on the same highway to the same destination! What is happening!?!?

Or or or, some time ago in some far away place, I ran 100m in 12 seconds but right after I drank Gatorade I ran 11.89 seconds! Downing Powerade right after the Gatorade run yielded 12.01 seconds, must've been a crappy drink.

Lemme dig up my Statistics textbook and quote you the following - Standard Deviation, Margin of Error.
You should go time your load times and come back to say you've got a defective hard drive because the second time you played you had a different time.