I just Built a new PC with the following: MB- MSI K9VGM-V Processor- AMD Athlon 64 3500+ Power Supply- Hercules ATX 500 watt HDD- Maxtor 160GB (2 hdd's in system, both are the same) DVD/CD Drives- LiteOn DVD/CDRW & WriteMaster DVD-RW/CDRW Video- GeForce4 MX440 128MB PCI Memory- Kingston 1024GB Fans- 1 on power supply, 1 in the door, 1 at front of system, and CPU fan Problem: Computer shuts down after 5 - 10 minutes of game play. The power light blinks and I have to hold in the power button to finish shutting the system down and then turn the system back on. This problem has been going on since I built the system. The only games I can play are the ones that comes with Windows XP(FREE CELL, HEARTS, SOLITAIRE, SPIDER SOLITAIRE, ETC...) and internet games like on Yahoo.com or POGO Games. I started playing games with the on board display adapter and it would shut down after 5 - 10 minutes of game play. So I installed a video card, same thing happens. I checked for "Wake On LAN" in BIOS, it is disabled. I have checked the system tempurature and it never gets over 103 degrees. The computer is extremely clean, I just built it a month ago and I clean it twice a week. Games that I play are Game Of Life, Treasure Seek Games, Roll Playing, Board & Card Games. I hope someone has some idea of what is going on here and how to fix it. It is not fun, not being able to play any of my games.