FYI, I just observed that when a target rejects a MESSAGE SYNCHRONOUS
DATA REQUEST before the whole message is sent, the 6360 driver will
end up sending a MESSAGE NO OPERATION.  Some devices (at least some
models of NEC CD-ROM drives) seem to respond to this by going to BUS
FREE phase, which confuses things a bit.  This may be the problem a
couple of other people have noticed.

Anyway, I'll fix this RSN, but right now I'm going home to sleep...