My new setup seems to work. Though it did need a boot floppy as part of the process. 2 partitions: A: 9.1 and 10 (must be smaller than the first 8 gig of the drive) B: 8.6 procedure 1) boot off 8.6 cd, partition the drive install 8.6 on B 2) boot off 9.1 cd, install 9.1 on A 3) use 9.1 Startup Disk set it to boot 9.1 from A 4) use XPF to install 10 on A (repeat until succeed) 5) boot off boot floppy http://www.10k.org/jake/comet/bootcomet.img.bin and set it to boot 8.6 on B now if you turn on the machine, it boots directly to 10 if you hold on the option key while booting, it boots to 8.6 jake