Was playing a video game yesterday and the game suddenly turned off. My computer also began shutting itself off. All of the programs shut down and when it was shutting off it even ran a windows update on its own. I have only had my brand new computer for about 3 days and everything was working fine before this. I downloaded games (WoW, Left 4 Dead) and software for my wireless adapter (Linksys). Now when I turn my computer on it says "reboot and select proper boot device..." I put in my Vista CD and the CD starts to load. I get to a screen that gives me the option to "Install Now" or "Repair your computer". I choose "Repair..". Next screen says "Select an operating system to repair and click Next. Nore:This feature cannot repair operating sysems earlier than Windows Vista." Below that there are no operating systems (or anything else) listed. Then it says If you do not see your operating system listed, click Load Drivers to load drivers for your hard disks. I don't click Load Drivers because I dont know what that means. I click Next. Then get more options: "Startup repair, system restore, windows complete PC restore, widnows memory diagnostic tool. and command prompt." I click Startup repair and it says a bunch of stuff... main thing i think it mentions is Test performed: Name: Disk failure diagnosis Result: Completed successfully. Error code = 0 x 0 then it says Root cause found: The partition table does not have a valid System Partition. Repair action: Partition table repair Result: Completed Successfully. Error code = 0x0 When I restart my computer I still get the same error messages. My computer is brand new from Ibuypower.com Specs: Intel Core 2 Duo Processor E8400 (2x 3.0GHz/6MB L2 Cache/1333FSB)) Memory(4 GB [2 GB X2] DDR2-800 PC6400 Memory Video Card (NVIDIA GeForce 9800GTX+ – 1GBSingle Card) Motherboard(Asus P5KPL-CM -- Intel G31 Chipset w/6-channels, Gb LAN, S-ATA 3Gb/s, USB 2.0, Single PCI-E MB) Master Hard Drive(320 GB HARD DRIVE[16M Cache, 7200 RPM, 3.0Gb/s]) 2nd Hard Drive(320 GB HARD DRIVE[16M Cache, 7200 RPM, 3.0Gb/s]) OS: Vista 64bit Help is greatly appreciated!