I have not actually verified this, but I have a friend who tells me that he tried ZShell on an overhead equipped calculator, and ZS didn't display on the overhead screen, only on the TI screen. Interesting? <pre> -- Greg Hill http://braves.bhs.davis.k12.ut.us/ ghill@lab.tech.bhs.davis.k12.ut.us greg_hill@email.state.ut.us </pre>