Hi again. Currently a little confused... XWisp2 lists 18F4620 as supported with the patched firmware. The prog spec for the 18F4620 specified a 64 byte write buffer, just as the prog spec for the 18F8622. So, maybe the 18F8622 would also work, if it's just added to the XWisp2 config files !? I think I'll wait for an opinion fr=E5n Rob H. Jan-Erik. -- = http://www.piclist.com PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist