here's something else that hit my mind today: 1) Ash crashes if you turn off in KEY_HAND 2) OS-82 and OShell-82 do not crash if you turn off in _GETKEY, even though it says it should in romfunc.txt this is interesting, because I thought they were the same ROM routine, just different names if this could be solved, all of my calc crashes will be solved also!!! TIA, ~Adamman