I'll first describe my relevant hardware and configuration. I am ATTEMPTING >:-< to upgrade to an ABIT kt7a-raid MB (CPU: 1 Gig 133 FSB Athlon T-bird) and am installing a GeForce 3 64 at the same time. No overclocking, nothing exotic. I have two IDE HDs in the Primary, and two CDROMs in the Secondary, a TDK CD-RW (master) and a Kenwood 52X (slave), running a fresh (several times fresh!) install of Windows 98 on a newly-formatted (several times newly-formatted!) 60 Gig HD, partitioned 50/50. btw, in my previous PC incarnation, the hardware I've transferred worked with no problems. Okay. Well, once upon a time, a MB upgrade was a breeze - THIS one has turned into a real tornado! ONE of my current problems is that Windows will not recognize my CDROMs. They are located in POST and listed in BIOS, and if I use the Windows 98 startup floppy, they will be assigned and may be accessed just fine. When I run through a normal bootup, however, they simply >poof< disappear once Windows has loaded. No assigned drive letters, no mention of CD-anything in Device Manager - nothing. Now, at one point, I DID have the CDs in Windows, because I (once or twice) installed the VIA software (for the MB) from CD and attempted to use the GeForce software CD to install the video. I ended up using downloaded drivers from the internet for both of these software sets, however, since the using the sw that came with the GeForce caused my system to hang once it reached Windows, necessitating one of the numerous Windows installs I have had to make during this unexpectedly long-term project! But I digress. I made no CD-related device assignments in autoexec.bat or config.sys, but I know that's not necessary and hasn't been for a long time. Hey, there weren't even driver disks in the box with these CDs! So, bottom line - I'm at a wall and am WAY open to suggestions! Thanks in advance! (If you can help me get past this hurdle, maybe I'll regale you with my SCSI woes - but, one hill at a time!)