> I checked the datasheets to be sure, and there is no mention of > interrupt related bugs in the 18Fxx8 chips. Such bugs are not listed in the data sheet, but rather in a separate "errata" document. I just checked the lastest errata sheets and you are right, the bug is listed for the 18Fxx2 but not for the 18Fxx8. ***************************************************************** Embed Inc, embedded system specialists in Littleton Massachusetts (978) 742-9014, http://www.embedinc.com -- http://www.piclist.com hint: The PICList is archived three different ways. See http://www.piclist.com/#archives for details.