A SOUND PROGRAM [The penultimate number in line 30 was 236 in the listing ] [but this does DJNZ -20 which is before the start of the code,] [so it crashed. 244 keeps it in a valid loop, but as it's just] [sending a6 to port 254 all the time all it does is change the] [border to yellow with no sound. JimG] Supplied by Michael Toner who lives in Belfast, this short program (LISTING 5) [file: Sound] will liven up the old Beep. Once entered and RUN just type RANDOMIZE USR 65511 to have your ears tickled. [The actual locations are 65488 and 65503. JimG]