Well, that's embarrassing! My speculation about the different Turboroms was nonsense. I discovered that the floppy drive in my Kaypro 10 had its drive select jumper set to ds2 instead of ds1. No wonder it wasn't showing up. I discovered this when I used Turbomap to reveal the drives and their settings. Should have checked the computer more carefully when I got it from Ebay. In any event I now have two hard drives of 40 meg each split into 6 partitions. This is an enormous amount of storage space for a CP/M machine. And I still have a 60k TPA. Now to fill them up!