koala

Hi TechieMom, welcome to TSF

Is the new CD-ROM drive on its own IDE cable or sharing with a hard drive? As there are no jumpers for master/slave, it's possible that it needs to be on its own channel, I'm not sure though, I've never used one without jumpers.

Are you using a 40 or 80 wire data cable? Are the cable connectors firmly attached to the drive and motherboard?

Can you see the drive listed in BIOS? If you change the boot order to 'CD first' with a bootable CD inserted, does it boot to the CD or to Windows?

If it's listed in BIOS but can't be seen in Windows Explorer, go to Start > Run > regedit. Remove the Upperfilters and Lowerfilters values from this registry key:
HKEY_LOCAL_MACHINE \ SYSTEM \ CurrentControlSet \ Control \ Class \ {4D36E965-E325-11CE-BFC1-08002BE10318}
Then reboot.

Important: Make a backup (export) before making any changes to the registry.

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