Thanks to Dave Dunfield, I now possess some TEAC FD-55B units for the Kaypros. I popped one in and it booted CP/M fine. Formatted a disk fine. But, before I install them, I thought I should ensure the jumpers are correct for the drive. Reading the manual, I have a few questions: * Should IU (head load on pin 4) or HL (head load on pin 4) be enabled? * Any reason to leave ML (motor running) on and have the motor run all the time? * What combination of IU/U0/U1/UR should I use? I tried IU+U0 thinking the light would be on only when the drive is running, but that's not true. * HS + MS or HM + MS? Neither seems to make any difference on the Kaypro * teac notes it ships the 55B with HS,DS0,IU,SM,and PM. I have DS0 (or DS1), HM, SM, and PM. The unit had ML strapped, but I removed it.