Can't get Fedora 19 Xfce Live CD to boot on one computer

Hi All, First: the MD5SUMs are correct and they both boot on several other computers, including my own KVM VM's. (I state this first because that is what I would first think.) I have a customer with a computer (i5) that I can not get either of Fedora 19 Xfce Live CD to boot. (Haven't tried FC 20 yet.) But I can get my Windows 7 WIN PE disk to boot. [/editorial comment] AAAAAAAAAHHHHHHHHHH !!!! [/editorial comment] It boots past open selection screen, then goes to the gray background with the blinking cursor in the upper right. Then it just stays there. You can eject the CD-ROM from the drive. Any ideas what is going on? Many thanks, -T -- ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ Computers are like air conditioners. They malfunction when you open windows ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~