I've re-installed NetBSD 3 or 4 times, all with the same result: trap type 400 at ff8099b8 Stopped in at 0x230154: lwz r0, r1, 0x14, db> examine 0x230154: 80010014 This is NetBSD 1.4 on a 7600/120 1.2 Fireball HD (internal scsi, ID 1) 136 RAM OF using a serial connection to a powerbook. Any suggestions on where to go from here? James.