Steve

If I have the RX PIC set to T1200 and Defined to 16 MHz but running on a 4Mhz crystal with delays altered while the TX PIC is set to T300 and N300 on a 4MHz crystal, it doesn't work. I've tried all kinds of combinations and it just won't work.

Went out and tracked down some 16F84 PICS and have just tried those and they too won't work on T300 or N300.

I really think it's the PBP version now that the 16F84 PICs won't work either.

I can post a rough schematic and the whole code if you can wait a day or so and still wish to look into this?

Yes the latest version would be nice.