Help: stuck in black plague computer room

[ion-h]

Hi, I'm trying to get out of "computer central" in the Linux version of Black Plague

I've given Dr Eminiss the saw and have trapped him in the server room (complete with "invisible door, invisible Dr" bug). I've got the programmable cards, have programmed them (when they compile correctly they're okay, right?) and inserted them into the rack computer. (How fussy do you have to be about this? They don't seem to 'lock' into place, and there's no immediately apparent effect of having them installed).

Back to the Dr's room and...nothing. When i try to do something with the PC, i just get
"It won't boot, the screen fills up with error messages. There must be some way to fix this."

Okay, what IS the way to fix this??

Help!