>> One free guess why one of the MPLAB options is to put the checksum into >> the >> ID Locations (2000-2003 on 16 series). >> > > >Where did they hide this option? I remember it being a tick box when programming using the ICD1. -- http://www.piclist.com PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist