Luke727@aol.com wrote: > the only thing different is that i renamed a.83p to sos.83p and renamed it on > the calc also. do you think that is the problem? Yup, most likely. Reset your 83, send the original sos.83g, then try running that BASIC program. -- Bryan Rabeler <brabeler@ticalc.org> File Archives, HTML, Features, and Support the ticalc.org project - http://www.ticalc.org/