I just finished building my machine w/ Gigabyte's GA7VRXP motherboard and Antec 430 watt power supply... and my system seems to restart when I attempt to shut-down. Sounds like something I need to fix in BIOS, but I can't seem to find it anywhere.
My last post wasn't clear enough. I'm using Windows XP. When I go to shut down, it does the entire shutdown process and my computer clicks off momentarily before starting back up again.