Ian, I have a 2000HD with an A2630 card, and OS1.3 + 2.04 on a swicher.
Degrader version 1.30 works OK. Kickstart 2.04 seems to be harder to fool
into PAL for those European Demos, than 1.3.
Or if you have a 2000 you could install a hardware switch across jumper
102. I have done this and it works just fine. This jumper seems to be the
one that supplies +5v (for PAL) or ground (for NTSC).
If you do this, don't flick the switch while the machine is on. Leave it
of for a few minutes to get rid of any static.
🙂