Hello! I have a two year old packard bell IMEDIA 3052 Full specs can be found on the website.. google packard bell..( wouldent let me post a link sorry??) I have upgraded to 2x 256 mb ddr ram and a radeon 9600 pro graphics card. also 1 extra fan as the graphics card one is getting a bit noisy..( fixed with a bit of grease) but just in case.. Ive never had any probs with this computer but recently the mouse freezes for a split second on screen and my pc lets out a single system beep. once or twice i have lost the mouse all together after this beep.. but after a restart everything seems ok. I have opened my case and gave my pc a damn good vacum because someone mentioned overheating to me.. I have ran numerous spyware/antivirus/nortonsystem works and even a full system reboot.. but still the problem remains.. The system beep is short.. the mouse freezes for about a second ( but the film i am watching.. ect, does not.) My system specs (in short ) are 2.8 ghz celeron 1gig ram radeon 9600 pro 256 mb gpu 80 gig hardrive.. Thank you in advance for any advice you may have on this annoying problem!