Both CDroms work but only one can be seen in My Computer

I have 2 CDroms hooked to my computer both are seen in the bios. When
I go to my computer one drive shows up. If I type in e: the missing
cdrom drive will show up and display the files on the cd.

How can i get it to show up in My Computer?

If I am in My Computer with Folder view turned on, and after i stroke
in the missing drive letter ex. E: then it will also so up in the list
to the left, but after closing and reopening and reopening the drive is
gone again.

I have also changed where the cdroms are connected on the ide cable
such as changing master cable select and secondary settings, hooking
one on secondary ide and the other on the main ide with the hard drive.
doesn't help.

Thanks for the advise