No, haven't seen that. I do have an 18F1220 that failed in such a way that it can be programmed with Vpp perfectly well, but it's unable to write to its own flash at run time. Neil > > What I want to know is, has anyone ever seen such a thing in the PIC > line? -- http://www.piclist.com PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist