Hi all, Have a product working very well for a long time on the bench, but in a=20 truck I'm getting EEPROM data corruption. Only real difference is the=20 power source. Is this possible? I switched to an external EEPROM and=20 haven't tested on the truck yet, but thought I'd ask in the mean while. My power supply is fairly basic -- reverse protection diode, small=20 resistor, 8V regulator, then 5V regulator. 0.1uf caps on the input and=20 output of the regulators. Total current draw is 60mA. Cheers, -Neil --=20 http://www.piclist.com/techref/piclist PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist .