That little tidbit of code you gave me worked fine.

I did end up trying the mouse card in my GS and it worked fine, so I know it isn't a hardware problem.

The mouse card is in Slot 4 of the //e, for clarification. I may try it in another slot just to see if it makes any difference.

When I enter the second mini-program that you posted above I get some output after RUN-ing it. I get text saying IN#4, then PR#0, then a prompt. If I just hit enter I get ?REENTER. Moving the mouse or clicking doesn't seem to do anything.

Hope that gives you a better clue as to what's happening =]

-Academician