I just got my p4 and the heatsink had a (thermal pad) and intell says that not to use thermal grease is there beter or worse performance with the (thermal pad).
<A HREF="http://www.geocities.com/andrewbadlose/specs.jpg" target="_new">Computer Specs</A>
<A HREF="http://www.geocities.com/andrewbadlose/specs.jpg" target="_new">Computer Specs</A>