I'm trying to upgrade my dad's computer from Windows XP SP3 to Windows Vista HP. The CD I have is the Upgrade version of Windows Vista. When I put the CD in the DVD drive it never goes to the set-up screen. I've tried right clicking the drive to start set up but when I do the drive shows nothing in it. I put the CD in my computer and it started right up but I'm running Windows 7 HP. Any solutions?