Wow, thanks. That works great. I had figured I would just have to live with it the way it was.
Just out of curiousity, is it possible to configure Altirra to use 2 5200-dapters with games like Robotron and Space dungeon? At this point with the trackball working so well that's all I need my 5200 for. Not that I'd ever part with it, I've had it and the games since 1982....