I am trying to fix a SONY VAIO desktop, model PCV-RS420, 120GB HDD, 512MB RAM, American Megatrends BIOS V2.51, 2001 08/08/03 windows xp home edition. When the computer boots up, I get an error message "NTLDR is missing, press control-alt-delete to restart". When I do this I get the same error message. I tried to boot up using a restore CD but found that the CD drive is not running. Using the F2 key I opened the BIOS and found that all the drives (HDD, DVD-RW, CD-RW and floppy drive) are disabled. They are enclosed In brackets. I can't figure out how to enable the drives so I can use the Microsoft fix for the NTLDR missing error. Please help. Can't afford a new computer.