cd rom trouble

Open the Device Manager,check to make sure their are no yellow exclamation marks on cd-rom or the controllers,now try selecting the cd-rom and then click on properties,select the Performance tab and make sure that drive is not running in ms dos mode
Try switching the cables and see if this will solve the problem,you may want to check the bios setup to see if the drive is being detected in the configuration

Have you tried installing the chipset / motherboard IDE bus drivers?

I see this problem on a lot of W98 installations.

Chas

The error means the cd rom is not configured at the system because to the driver.

If you have a win98 startup disk..used it.
Boot your computer with win98 start up
Use the option With CDrom support.

you can access the cdrom at the command prompt.
and now you will know if there is a problem to your drive...

removed the floppy
Boot windows
At the device manager, find the cdrom, and instal the driver..

SYRUPHIN?

Back to basics, make sure the data cable is plug in correctly on BOTH ends, pin 1 to pin 1, make sure the jumper is set correctly, master or slave, change the drive from primary to secondary controller or visa versa(primary controller works or hard drive wouldn't or would be in 16 bit mode). Make sure it gets power, any lights while booting? Set all drives to auto detect in bios.
If it shows up in device manager and there are no conflicts or yellow flags under disk controllers then remove it,go to windows\inf\other and delete whats there(inf is system folder), and reboot. Maybe the os still thinks the old drive is there and not using right driver. If none of these work I don't know what to tell you:-))
hope this helps,
Good Luck