I have a picstart plus with the latest firmware (3.62.1.0) as well as the latest version of Mplab (6.62). When I try to program a 18F2320, mplab displays sucess, but a subsequent verify shows the pic to contain all nops. I thought it might be the 18F2320, but mplab considers support for the 2320 to be in beta with the picstart plus. I don't have another chip to try, and I am able to program other (e.g. 18F252) parts without problem. Thanks for any ideas Stanve __________________________________ Do you Yahoo!? The all-new My Yahoo! - Get yours free! http://my.yahoo.com _______________________________________________ http://www.piclist.com PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist