> It initialises just dandy now, but I get all sorts of garbage on the > display if I disconnect that analyzer lead You'd expect the opposite. Flying leads are good noise pickups > That's why I'm wondering if this is perhaps due to ringing or > something on the Enable line I'd have thought the devices to be too slow for significant ringing, but you never know. A driven PIC pin would be reasonably low impedance and I can't imagine how a stray lead would affect it. However, a pin is low impedance to Vcc. Perhaps Vcc has an impedance problem ?=20 Joe --=20 http://www.piclist.com PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist .