It's 1975!!! > You have an microcomputer controlled circuit. > breadboarded on the workbench. It's showing > symptoms of all sorts of strange things. oscillation, and the ... shows a ... > After several hours of head-scratching, circuit simulation, > pen-and-paper recalculation and so forth, you decide to give up and take > a breather. You - turn the desk lamp off... - or throw your lab notebook on top of said circuit - or ... > And the circuit springs into life, the MCU boots, proclaims that all is well in the State of Denmark ... > ... and proceeds to display perfectly > valid ... > The - lamp in question - room fluorescents - ... > was later found to be affecting the UV eraseable EPROM via the uncovered erasure window. So! Those stickers DO serve a purpose. Doh! Some crimes, only the suspects change with the passing of the years. Russell McMahon --=20 http://www.piclist.com PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist .