Well, that wouldn't add more than about 32k. The rom in the calcs doesn't even support more than that. It would take a long time, and your warntee would void. Grant >what about adding directly to the existing memory in the calc so that it uses >the existing MAP.? Im surprised nobody has devised a lan to take care of >that. > Just an Idea. > ~Matt R > mrneto@aol.com