Sorry , but I still have questions... Is there a routine like "Stop" in basic that stop the program. Because with "ret", the program goes to the last label... and that sucks. Thanx P.S. I still need the source of Property86 or a other prog like that P.S.2. Does someone dissassemble the Ti Demo prog, if so, how do they lock memory (like in Rascall), is it a Rom call or what ???