I am trying to install 5.1 on a old P166. The install starts then fails with these messages - sio0: configured irq 4 not in bitmap of probed irqs 0 sio0: port may not be enabled sio0 at port 0x3f8-0x3ff irq 4 flags 0x10 on isa0 sio0: type 8250 not responding that is where the install is now hung. Any ideas? Thanks, Chip