[My laptop overheats only when I play SL.]

The overheating issue began suddenly for me about a week ago as well.  I have two extra fans, one underneath, and the other off to the side.  But, unless you want to make a grilled cheese sandwich on it, don't touch my computer while SL is running.  Something changed, but I did't add a new viewer.  Could this be a result of the latest viewer update from LL?

 

Thanks in advance.