Oh no no no! That was a DIFFERENT I. Dzhugashvili!
Seriously, thank you for the quick response. But here is the problem. I had my problems well over a year ago, and so I can not be sure, but I seem to think that I had this problem with devices not showing up and with extra devices showing up, even when I had the out-of-the-box XP IDE drivers, and not only with the Nvidia SW drivers. But I can't be sure because it was so long ago. Is it possible that there is a "peculiarity" with either the motherboard, or the chipset, or with that DVD combo drive, or with all such combo drives?