'm having trouble with the PIC16C924 part. The code works in the windowed part but won't run when I put it in an OTP part. I'm using the Picstart to do the programming. One suggestion I've found is to make sure all of the file registers are initialized. I believe I've done that, but maybe I don't understand exactly what a "file register" is. Any suggestions? Many thanks. George come visit my choral music midi page, the "Woodshed", at http://www.channel1.com/users/gsilvis/ 00 FF 2F 00