Steve,

Thanks for your time! I will try this when I get home this evening.

4) there's no max-232 (or else inverter) between the PIC and the PC
Sorry forgot to mention the PIC connects to a Bluetooth radio then to the PC. This has been a stable product of ours for the last 1 1/2 years. This is a test for our customer adding the IButton. Both sides are direct connect!

Thanks,

Scott