> I programmed the chip using MPLAB and set the clock config bit to HS. This > didn't work. One thing that caught me out a few times was the order in which you set the configuration bits and load a hex file or run the assembler. If you aren't careful, the config bits get set back to the default values. You might be getting caught by the same thing. Have a read of the manual about that subject, just in case. Steve. ====================================================== Very funny Scotty. Now beam down my clothes. ====================================================== Steve Baldwin Electronic Product Design TLA Microsystems Ltd Microcontroller Specialists PO Box 15-680 email: steveb@kcbbs.gen.nz New Lynn, Auckland ph +64 9 820-2221 New Zealand fax +64 9 820-1929 ======================================================