[ubuntu] Overheating on Dell Mini?

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http://ubuntuforums.org – We have a Dell Inspiron Mini running Ubuntu 10.04. I loaded the 10.04 last year after the previous version of Ubuntu it had been running was obsolete, but the Dell hadn't been used since. My OH took the Dell to Vienna to do research in an archive, and found it kept freezing and the file he was working on would be lost or corrupted. He also noted it was very hot. He was working in hot weather, and the machine had usually been switched on for an hour or two. Since he got back, I've tried out the Dell myself and found that 10.04 seems to be working fine, except that the machine does ge (Hardware)