Ahh, thanks for the info. I was never able to make my ArcadeVGA/Act-Labs combo work either, but I had twisted the syncs together on my cable hack. Since then, though, I now have the ArcadeVGA in my cocktail (which isn't very friendly for experimenting, pretty cramped), so I haven't gone back and modified the cable to see if it would work. I have heard of some successes with the ArcadeVGA/Act-Labs combo, so I had hoped the sync fix was the solution. It sounds as if there are other unknown factors contributing to the incompatibilities, too, such as you have found.