kinger - the thread you read was mine -I am that man - and it happened to me twice !!! Will try and sort the links out but think I have cracked the reason why it happened - don't know if its the same with a 'removable' jobby. The 1st time it happened, had a hard disc failure, bought a new one, fdisked and formatted, reloaded w98se - - - and no secondary hard disk - -a disk which was working fine up to the re-build. The 2nd time was when the replacement disc above broke, and sent it back and installed a 2gb drive, just so I could use PC . In both cases, BIOS recognised the fact I had 2 discs, even fdisk did. Ran a couple of dos utilities that could actually see the stuff I had on the 2nd disc, this the one windows couldn't see. In both instances I ran a utility called testdisk4.4 , and more by luck than judgement, managed to modify this drive for windows to see. The 1st time this happened took me ages to resolve, the 2nd time I was almost ready for it. The time I was expecting it to happen for the 3rd time, when I had my disc back and was replacing the temp 2gb hard drive, both discs were picked up first time. The only difference between this last time and the first 2 times was that i hadn't re-installed GoBack program on both drives, I knew the 2gb was temperary so didn't bother.
So, I'm putting it down to a 'glitch' with GoBack - - if you need link to testdisk4.4, or want it via email, let me know.
by re-installing GoBack won't make a difference to the AWOL disc as windows couldn't see it anyway - -gonna find the link to the last time I posted this problem, some interesting comments near the end as to why I felt the problem was GoBack - - don't go away.