first off just want to say hello i'm new and i have been haveing a problem with my computer that i built on my own... first off let me just post what kind of machine i have AMP XP 1600+ 512 MB DDR RAM Sound Blaster Live! 5.1 Ati Radeon 9250 128 MB AGP Video Card Windows XP Home Edition Service Pack 2 I have updated EVERY driver known to mankind for all my hardware and also i have DirectX 9.0c and everytime i play for example Doom 3... it will start up okay... everything runs just fine... as soon as i start playing about 5 mins or so... the game exits to the desktop... same with the Sims 2.. but i have an error message that says "The game has caused a crash and will now close" or something like that... and when i play GTAIII or Max Payne 2 i get this error message Unhandled exception: c0000005 At address: 0012fbf2 and its really starting to get fustrating... it has been doing this for about a year now... so i thought okay.. it must be the video card... so i went from a GeForce MX 400 64MB to what i have now... same problem... took out my soundcard and installed the drivers for the onboard audio AC'97 and same thing... removed my ram and bought new ones... same thing... i don't know what else it could be... i have looked up stuff online and have found out it could be because my computer is overclocked... well its not.. and it never has been... i went online to found out what the temp. and power and all that should be for my motherboard and went into my bios and all that and everything is fine... so my computer is not overheating. i don't get what else it could be!?! Please help i would really appreciate it! thanks!