Russell McMahon wrote: > Regardless of what triggers it, are you doing everything "by the > book"? > > All input pins terminated high or low. ... or configured as analog inputs (but still not left floating, just not necessarily high or low). > All non terminated pins as outputs. > Watchdog either disabled or disabled. > No pin voltages > Vdd or < Vss by even a smidgeon EVER. Every chip/circuit that switches anything bypassed. Gerhard -- http://www.piclist.com PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist