I have a Macbook Pro 2.26 Ghz Intel with 2 gb memory running Mac OSX 10.6.5. Recently, the machine has been getting VERY hot when streaming any video or other intensive operations. Despite those temperatures, Istat Nano indicates that the exhaust fan (the only fan on this version) is running at zero RPM's. FYI, by "very hot" I mean temperatures in excess of 200 F degrees. A few days ago, when I discovered this problem, the CPU-A temp reported by Istat Nano was 220 degrees! Any thoughts on how to solve this? I tried the SMC fan controller but it didn't seem to help. On a related note, what temperature is considered "too hot"? Thanks.