TRIMAGNA wrote: > > I would like to know if anyone knows how to protect and unprotect a > program on the TI-82 or -83. > > -- Andrew Dick trimagna@primenet.com Use the graph link cable to send the program to your computer, open the .82p or .83p file in the graph link software, change the edit lock check box, save it, and send it back to the calculator. -Calcbert