Hey all, A friend asked me to fix his Acer desktop with Vista on it. I'm pretty sure the hard drive he had was no good, the old one was making a racket and the computer would not boot up. I have replaced the hard drive with a spare from a parts computer. I changed the bios so that the computer will boot only from the cd drive. Booting from the new hard drive is disabled. I had to create an ISO dvd version of Vista because he doesnt have the disc but the case does have a valid cd key so I plan to use that. I have confirmed that the disc works by booting another computer from the disc. The problem I am having is that when my friends computer tries to boot from the iso dvd I get a black screen (bios?) that says something like: Failure to boot, please enter a valid boot disc and press enter (I cant recall the exact message). I tried hooking up a spare dvd drive and sill get the same message. Any suggestions as to how I might make this work? Could there be another hardware issue with the computer like the mobo or ram?