I'm new to the list, so here goes: I've got a TI-83, TI Graph Link cable and software. I found a program that is supposed to play stereo sound called CalcMod V2.2. The problem is it won't run, also I can't upload all the files, get the message that it is in the wrong format: *.8xp, can anyone please help!! Pieter La Grange Stellenbosch University South Africa