I want to boot the computer off the DVD drive so I can install a new OS I have on a 1.4 gig DVD. The BIOS is set up to boot floppy, CD, then HD but there is no entry for a DVD drive. I removed both the CD and DVD drives, CD was jumpered to serve as master, DVD was set as slave. I changed both settings so that the DVD is now the master, and installed it with the ribbon cable that used to go to the CD drive. It still boots off the HD like before. There is no provision for choosing an alternate boot source at start up. I'm willing to try any suggestions. Thanks, LM.