Hey I was searching around the internet a while back to fix a stuttering problem I was having playing games.
I came across a nice program that fixed it by overclocking my processors.
I am using AMD Phenom Processor Quad Core 9600
The Program is CrystalCPUID (http://crystalmark.info/download/index-e.html#CrystalCPUID
You have to run the CrystalCPUID and then run the TLB Which can be downloaded (https://rs90cg2.rapidshare.com/#
I am using a ATI Radeon HD 5700 for mining, it was giving me around 128 MHash/s
When I overclock my Phenom it went to 131MHash/s
obviously nothing ground breaking but it is 3 MHash/s