Thanks - I'm pretty sure there's no such driver on my Macs as I went through the extensions to remove ones I don't need and don't remember seeing any Iomega ones. I will try in 7.6.1 first though, as the Zip drive is probably still dead Hopefully if I do need to get the OS9 driver it will be possible to extract the relevant extension from the IomegaWare package, if the one extension is all that is needed - I only have two OS9-capable Macs and both are already set up with it so I can't do a clean installation. My next mission is to scavenge some Zip100 disks