Can anyone help me here? I have a compaq presario s5200uk AMD athlon 2600, 80 gig hard drive 256 dd ram and I am running XP Professional. The computer is only 10 months old and yesterday after using it I went out and left it switched on, When I came back (2 hrs later ) the screen had frozen so I switched off the main power supply and now I can't get it to boot up. When I switch it on the green power light comes on and that's it, No beeping noise or anything. I regularly run anti-virus software so I don't think it's anything like that.....Can anyone offer any help.