Actually, he's referring to YOUR message above. But because there's no real threading here, it's less than clear. (Web forums are SO much worse than newsgroups.) But you didn't say HOW, which is what I specifically asked you. So here's what I'm gonna do... In Device Manager, choose Driver tab, click Update Driver. Hit Next. Choose "Display a list of all the drivers..." and hit Next. The first choice shows "PBM IDE controller (6-19-2003)" all by itself. I'm pretty sure that's the bad VIA driver so I hit "Show all hardware". THIS IS WHERE THE QUANDARY LIVES. Do I select "Standard Hard Disk Drivers" on the left and one of the *4* drivers on the right? (I _know_ the 5th is wrong, but I don't know which (if any) of the first 4 is right.) OR do I choose "Via Tech" on the left and one of the two on the right (presumably the one that has Microsoft in parentheses after it). Because see, NONE of the manufacturers are "Microsoft". None say ESDI_506.PDR. Right now, I'm leaning toward choosing the Via Tech/Microsoft combo. I'll probably have tried that before anyone reads this because I've been wrangling this big disk problem since the end of August! If it fails, well, my next post may have to be done from the Mac! It's probably ME you're reading on the ViaArena forum. Also, I've used MalcolmO online for almost 20 years now. I'm really wondering why it's just been in the last year or so that people are copying it with the number zero instead of the letter O. I'm trying not to develop an inferiority complex.