tim2006 said:
27 cel right now. It has gotten hot when I do more than surf.
Unless you're talking about surface temperature that is RIDICULOUSLY cool. Are you using Temperature Monitor? If so, maybe you're looking at the SMART temperature reading, which would be the hard drive. The SMART reading is the default number it shows, and unlike "CPU Core 1" or "CPU Core 2" (which are obviously the processor), it doesn't need an admin password to read it so it's all you'll see if you don't give it one. If this is the case, that's still cool, but at least possible.
If it really is the processor core temperatures... no. That's seriously not even warm to the touch, and I don't think it's physically even possible unless you woke it from sleep in a cold room about 30 seconds before and it hasn't had time to warm up yet. I don't think even the Apple //c had a processor that ran that cool. 22C is cool room temperature, and that's DEFINITELY physically impossible--the processor is by definition drawing some power, so unless you're in an unheated room deep in the Southern Hemisphere, air cooling simply cannot make it that cool. It's thermodynamically impossible.
So either the number you're talking about isn't really the processor temp, there's something wrong with the software you're using to measure it, or the processor's internal temp sensor is off. The Core Duo's internal sensor being off is rather unlikely, but even if it were it's nothing to worry about--the MacOS doesn't use that number for anything, it has a sensor on the motherboard that it uses to decide when the fan is necessary. There's currently no software that can read that, but it's probably fine, or the fan would be running full blast all the time.