My girlfriend's laptop this past week started shutting itself down with no warning. Today I finally had time to look at it and after running for maybe 5 minutes, the bottom of the thing was very hot - in particular, where the fan is located. I unscrewed the cover and used some compressed air to clean, but no luck. I am all over google, but thought with our tech guys/gals here someone might be able to suggest what to do. First, what can I do here before taking to a shop? Second, if it is the fan, what should that cost to replace for parts and labor? Third, if I can't fix on my own, is it even worth spending the money to repair? The laptop is a Gateway. Here's a link to the product page. Thanks!