One fine day, two weeks back my PC started restarting while booting. The booting process continues till the Windows XP progressbar comes and then suddenly restarts. off and on i got a "disk boot error". Initially i thought my HDD had gone for a toss but it was not so. later i thought it was a problem with the power supply. and so i opened the cabinet and replugged the power cables of the HDDs (two HDDs). the fans seemed alright. after that everything seemed fine till tdy morning. after 2-3 attempts my PC has started and thus i m posting this here. can anyone help me with this. cud it be that my HDD is gone. or cud the boot sector have gone corrupt or is it a power supply issue. plz help.