Just a thought... Is it to be expected that the PIC could happen to jump to the EEPROM wrote code, even if there is no bug/fault/logic slip/whatever in the code ? Or in other words, could another "safeguard" be to just simply have bug-free code ? :-) Or in yet other words, is it to be expected that the EEPROM wrote code could be jump to by some external event (power surge, EMI, intergalactic radiation or whatever) ? Jan-Erik. -- http://www.piclist.com hint: To leave the PICList mailto:piclist-unsubscribe-request@mitvma.mit.edu