Re-Docs suggestion, I think I found my problem, I must admit that you hit on it awhile ago Doc.
I was checking out my Logitech Marble wheel mouse settings, because I wanted to slow it down for when I play Emperor BFD.
I found an option box, where it says put click in box to disable acceleration in games.
So I clicked on this and it seems to have solved the heat issue.
Having said that, I also used Tweak Manager XP to clear out empty folders on my hard drive.
So I am not absolutely sure it was the mouse settings or not.
