Have a Satelite pro SP10-804 Laptop, for a while it used to shut down after an hour or so of use. Went to try it yesterday and it wouldnt post/beep at all. All that happens is that if I connect the battery the charge light stays on for 20 seconds or so then switches off. If i press the power button the fans switch on and spin for 30 sec or so then stop but the blue power light stays on. I have taken out the memory and swapped it around, but i got a feeling that it could be the CPu. Looking around the net all i can find is that its a Pentium 4 with HT at 3 Ghz, not sure what socket (looks like 775?) so would any 3Ghz P4 CPU work is it a laptop version. Any other ideas to what the problem could be? There is no post beeps at all, no lights apart from the power and "on" lights and the DVD drive clonking away.