I bought a rebuilt Dell off of eBay, loaded basic software (WinXPpro, Lab view), and transferred files from an old comp. All seemed fine. Computer sat idle for about 6 months and now won't start but fan is on steroids. I went on Google and tried various fixes (rebooting, unplug things, remove/reseat RAM) no change. I looked around at the transistors (?) and some could be showing less than flat surfaces but I'm far rom qualified to make that call. is there any hope?