Some folks just can't work with this stuff. The Artic silver is the best. But you need to apply it right.
Here is what you should do...Take an old tooth brush or razor..And spread it very very thin..The idea is not for the paste to transfer all of the heat. You only want it to fill in the micro gaps of air pockets.
To get this paste to work great. You need to grind the heatsink down on to the cpu. Don't break it! Just light twist from side to side till you hear some metal grinding is all. This lets you know you have metal to metal with only the air pockets filled.
The paste can be a little more hard to play with. So for those of you that care not for spending hours Modding your love shack. Then go down to radioshack and buy the 3$ cpu grease. It is tons easyier to work with.