There are also crystals designed for different resonance cirquit, if i remember correct, parallel and series. It might be you have the wrong type. Does the datasheet of the Xtal give any example cirquit? Does it correspond to the descritpion of th eoscillator in th ePIC datasheet? /Morgan -- http://www.piclist.com hint: To leave the PICList mailto:piclist-unsubscribe-request@mitvma.mit.edu