I'm trying to program function keys in LOGic 6 for SS this weekend but ca= nnot seem to use the STX() function. When I do so, with or without a value, t= he expression builder gives me a 'invalid subscript' error when I try to ver= ify. = This is true even when I program a key to simply send STX() by itself. W= hat am I doing wrong? Paul KB0LUR