Ok I posted a previous threat on the issues related to the powerbooks getting hot/warm whatever u wanna call it. I have now been measuring the heat coming off them. The temperatures vary from 37-42 Celcius. (100-110F) (in a normally tempered environment and the only process the comp has been doing is playing music for longer periods of time). you cant tell me that is not a problem or something apple should get fixed ASAP. also some users are complaining about the sweat stains. obviously we are going to be sweating a lot more using the machines because they get so hot/warm! What are your comments on this issue.