--- Poesie De La Fenetre wrote: well, I missed the meeting of you TC folks. But my excuse is valid... I picked up a mac Quadra 950, w/ tons of cool A/V stuff, and a 21 inch supermac monitor. Nothing 10 years old, except one of the hard drives- a 1.2 gig micropolis scsi made in 1987. huge. so, be that as it may, I cannot get the system to boot correctly with both the boot drive and this other drive hooked up at once. not a scsi ID conflict; if i unplug the big old micropolis, it boots, and i can plug it back in while it's running and it's accessable. it's not marked as a boot disk, a startup disk, and it has no system software on it. I'm lost. --- end of quote --- Could be a termination thing. Sometimes drives that used to be internal get used as externals, but they still have the termination jumper "on" which renders them unrecognizable to the system (don't know why it comes up when you hot-swap it, though). I think the termination jumper pins are usually labelled "T1." -- MB