Alrighty, I'll try to experiment and get a good airflow going. It seems preferable to spending 40-50 bucks on a new heatsink.
OK now, for the important questions. To establish proper airflow, I should:
1. Have the case closed, right?
2. Have the fan in the back of the case blowing INTO the case, right?
Yesterday, I took off the fan from the heatsink and cleaned it out (the heatsink). It was very dusty and stuff. But, that didn't seem to help much. I think maybe the thermal paste stuff between the CPU and the heatsink could be the problem. I don't want to take of the heatsink itself until I get some of that stuff to put back on.
Another thing, when I check the temp in BIOS (after the comp has been off for a whille), it says 40 C, but when I finish starting up Windows, Motherboard Monitor says 60-65 C. Is it normal for the CPU to heat up 20 degrees during startup?