Read and watch at http://reviews.cnet.com/4520-11319_7-6240575-1.html
My computer was first humming the G note on a music scale for a few years, that stopped and now it turns off every 30 minutes or so that I play my sims game. It then doesn't want to turn on for a few minutes. I'm 14, I know little about computers but I've researched my problem and I would say it is overheating from the dust build up from 2005 to the present time. This is our first computer and no one in my family of two would think to clean the dust out. I need to know where to go to clean the dust out, or if anyone thinks there is another problem, please state it.