pic microcontroller discussion list wrote: > know there are programming differences between the two, but > will there be problems with a PicStart Plus and MPLAB 6.20.0.0 ? if you look in the readme file, it says the PS+ will support the 628A if you have firmware 04.10.00 or higher. That means their special flash upgrade kit, i guess. I kept my PS+ at 3.11 since getting a ProMateII Phil Eisermann Electronics Engineer The Ridge Tool Company (440)329-4680 -- http://www.piclist.com hint: The PICList is archived three different ways. See http://www.piclist.com/#archives for details.