So here's the problem; I just buolt my very first pc. My motherboard is by gigabyte and it came with it's own disk (not a windowsxp disk or whatever it's called). When I turn on my pc and monitor, the monitor reads, "SYSTEM BOOT FAILURE, INSERT SYSTEM DISK AND PRESS ENTER). Now, I've tried everything. I've tried changing the order of my SATA cable, changing the boot order, and some other things people said. It can't be the DVD drive because I just got it. The only disks I have are the ones that came with the stuff. Which is a gigabyte disk and EVGA disk. I can't go to the internet and dowoad anything because, you know, I CAN'T GET PAST THIS STUPID SCREEN! Please help me!!!!!!