Thanks for the thoughts. I tried something, in the subroutine to SaveChanges I used WRITE 132,150 instead of WRITE 132,CB. The retrieved value was 150. It's not an EEPROM issue after all. Somehow my variables are getting corrupted somewhere. I'm reviewing all code with a "magnifying glass in one hand and a fine tooth comb in the other" to try to find where things are going awry. Thanks all.