let the system find them again.
Are both CD drives running off the same cable ?
Is it a 40 wire or 80 wire cab;e ?
After replacing motherboard (MSI KT6-V) and installing new drivers on old HD/Win XP Pro SP2 everything was working fine. Decided to add DVD RW Sony 12x Dual layer. Added as master and set jumper on CD rom to slave. Both are seen by bios but will not read disk. Both devices work in other computer running Win XP Pro.