i've reset my calc and put sos v1.4 and zlib 1.4 on it. i've also made a program called MM progMM :: :ClearHome it still gives me a syntax error. could it be the rom version possibly? i have rom v 1.0600 on my ti 83. joe, send me a zip of what is on your calc, i'll reset my calc and put it on. if it still doesn't work, then something is messed up. ok?