None. The apps notes show only an xtal and a 1M resistor in parallel connected to the Xin and Xout pins on the DTMF chip. I've read the previous posts about startup problems with PICS and PCB contamination, but there isn't ANY to be found here. Dave At 02:23 PM 10/14/97 -0400, you wrote: >What caps are you sorrounding the xtal with? > >