Argh--bad memory bit--wrong floppytape controller! Yup--CMS used their own configuration protocol. Linux has a routine that's used by the ftape driver called fc-10.c that probes for the FC-10 and FC-20 controllers. I'm not sure if you have an FC-10, but it might be worth a try. The FC-20 that I have in front of me is PCB 026-121. I've got an FC-10 somewhere, but it'll take some time to dig it out if you're interested. FWIW, the FC-20 uses an Intel 82078 FDC to get 2Mbps. Now that I think about it, the FC-10 indeed wasn't PNP; you had to use a configuration program to set the I/O, IRQ and DMA options. Programs wanting to use the card simply probed a known range of I/O addresses to determine what the setup was. Maybe--it depends on the date code of the 82077AA. Earlier ones support FM fully; later ones don't. If the 82077AA is in a PLCC socket, you can replace it with the National equivalent (8477?) to get full FM support. But IMOHO, getting an FC-10/20 to work as a generic floppy controller seems like too much work to me. Cheers, Chuck