I can use the dvd like normal as long as its running through windows, but as soon as i put in an install disk for an operating system and tell the PC to boot the disk instead of my hard drive, i get a blank screen. At first I thought perhaps the dvd was dirty, so i cleaned, no good, downloaded fresh copies of the OS I want to install and burned to a fresh dvd, no good. Tried multiple OS's i had backed up on dvd's no good. I KNOW one of the OS dvd's do work because it loads find for install on another system.. thing is.. i need this system for the install so the hard drive im installing the OS on will work in this system. Any ideas on what I can do to fix this?