Yes, double-checked them. And they used to all work before I started = messing with my DIY programmer :-) _____ =20 Andr=E9 Miller =09 -----Original Message----- From: pic microcontroller discussion list = [mailto:PICLIST@MITVMA.MIT.EDU] On Behalf Of D. Jay Newman Sent: 16 February 2004 11:36 PM To: PICLIST@MITVMA.MIT.EDU Are you sure that it is a 16f628 rather than a 16f628A? Sometimes the "A" version have different programming algorithms. -- http://www.piclist.com hint: PICList Posts must start with ONE topic: [PIC]:,[SX]:,[AVR]: ->uP ONLY! [EE]:,[OT]: ->Other [BUY]:,[AD]: ->Ads