At 02:02 AM 04/26/2000 , you wrote: >Brian, > > >What frequency is your crystal? > >At 4 MHz you should use XT mode with a 3 pin resonator. >At 10 MHz you should use HS mode >Which applies to you? > > > > Russell McMahon >_____________________________ > I am using a ZTT three pin resonator marked 4MHz. I have to use HS mode to get the pic to run. I thought XT should have done it. Brian ******************************************** Better Produce through Better Control ********************************************