Thanks to everyone that was helping solve our PDP-11 boot problems but it seems that part of the problem was the fact that the backplane was giving out (it actually went up in smoke on friday night while we were playing with it, as did the front panel to my IMSAI, what a night that was). So again, thanks... Tony Dellett PS: If anyone in the Massachusetts/New Hampshire area has a spare RX01 that they wouldn't mind parting with, we have alot of Q-Bus cards that need a backplane :) Tony