Hey guys, I replaced the thermal paste of my MBP 2.4 Penryn, however not with the traditional Artic Silver 5. I replaced it with Artic Cooling MX-2; there is not metal substance in the paste which can cause corrosion. So, I opt for the MX-2. These are my temps idle. On load, CPU does not go above 60C degrees. I work on a glass desk, and the room is quite small so it can get warm. I thought I give you guys my finding, and hope you might try MX-2 instead of the AS5.