Are others experiencing this? I'm having issue getting a good solid answer after googling for quite a while. Some of the threads I have read also lead to no end result. When I watch any videos, no matter what it is, after about 2 minutes my black macbook heats up and then run at fan speeds of 3600-4800rpm and it's super annoying and hot. As soon as I turn off the video, it cools down back to 1800 RPM and runs at 62 degrees. Sooooo odd. I went to the genius bar and the guy there said that it is probably due to the fact that Snow Leopard takes advantage of the dual-core processor. I don't understand why it needs to utilize this processor where as it never had an issue on leopard before I upgraded. I've also read that reloading the OS doesn't seem to help. Is this a common issue? Should I go back to Leopard? I've only noticed that expose` is a little bit fancier on SL but other than that, I do not notice much of anything that is different.