> BTW, running those numbers with the *maximum* Rs of Mark's > crystal (taken > from the datasheet) and a calculated load capacitance with 33pF caps > (calculated CL = 22pF) yields an estimated maximum drive > power of 3.8mW, well > above the datasheet 1mW maximum rating of the crystal. That's > the problem, > Euros to donuts. OK Sherlock, you convinced me, thats the problem. But what's the solution? Wouter van Ooijen -- ------------------------------------------- Van Ooijen Technische Informatica: www.voti.nl consultancy, development, PICmicro products docent Hogeschool van Utrecht: www.voti.nl/hvu -- http://www.piclist.com PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist