Hello Dear Friends, My PC (Desktop Computer Windows XP Installed) is having some problems, I am not able to understand what it is. When I want to Power On this computer some times it is matured at the level of Window/Desktop, but it is automatically powered off at any time and a NUMLOCK Indicator shows on the Keyboard and if I want to Restart it the Power on Button does not work until I did not cut off the power supply for 30 Seconds to 1 Minute. Some time it can not be able to load the window and powered down in between the Boot Process and even I can not Reinstall the Windows due to this episode. PLEASE HELP TO CLEAR THIS PROBLEM !!!!!!!!!!!!