I had a bit of a panic attack after editing a program and attempting to load it. After transferring the program, the machine would not run. It had some function but acted as if part of the program was missing. I used FX/GPWIN to edit the program and transfer it and would get a file mismatch error. I dug out trusty ole Medoc and tried again. If I sent the program three times it would verify on the third try. The PLC is an FX-80. Does this sound like an eeprom problem or communication issue?