Sorry for the tongue-in-cheek comment. My current GS emulator is... well... it's a GS. It runs all GS software flawlessly and supports all GS peripherals. Now if I could only find a good map of the world for Ground Track GS I'd be in good shape :) I've got the ove from HyperStudio, but can't seem to lay an accurate longitude/latitude grid on it, so it's back to hunting through databases. -John