LPT question from newbie

I was hoping someone could help me with this. I use a PMDX-120 to
isolate the computer I'm working with. When I plug it into a computer
at work, Relay A is off, the rest are on. When I plug it into a
computer my school provided, ALL relays are on. This is most
distressing since I am using Relay A to power a VERY small motor
(ON/OFF, no speed control) I can't change the state of the relays that
are on when plugged in.

This all leads me to believe the pins on LPT1 that control these relays
are active. Am I configuring something wrong? Is this a problem that
can be fixed in TurboCNC, or is this something to do with the computer
itself? The computer where I work is an old Gateway 4DX2-66 with the
printer port in $3BC. The school computer has been stripped down so
that only DOS runs on it, but it is a newer model (5+ years) pentium.

-Hunter