Hi,
Have you tried removing the secondary IDE controller, then rebooting and allowing Windows to re-detect it?
One way to determine whether it's a software or hardware issue is to obtain a Windows 98 boot-disk, and boot up the computer using it. When prompted, choose "Start Windows 98 with CD-ROM Support". When it finishes loading to a DOS prompt, stick a CD in the drive, change the directory to E: (or whatever drive letter is assigned to your CD-ROM), and type in dir. If the drive can read and list the contents of your CD, then you know that the drive and controller are functioning properly, and that the problem is with the driver (software).
When did this start happening? In the "Properties" window of the Sec. IDE controller, what is the error given? Does it relate to drivers, or a resource conflict, or something else?
