Alan Pearce wrote >> Mark E. Skeels wrote: >> > Dumb question: I don't suppose this eprom has a window? >> > >> > If so, did you cover it after programming? >> > >> >> Even if he didn't cover it, unless the board was under a UV light they >> won't be erased in a hurry. >> David... > > True, but light is known to have funny effects without necessarily > erasing the device, witness the problems people have with windowed PICs > when they do not cover the window. Thanks Alan ... the last couple I just programmed (attempted anyway) I=20 covered before starting the programming process, using the same material I= =20 always use, so we can probably cross that one off. Thanks, Roger=20 --=20 http://www.piclist.com PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist .