I'm trying to program an EEPROM chip on an A/B SLC 500 processor with a 1746-BASIC card. I have a very simple 3 line BASIC program and I'm using Hyper Terminal to download the program. It appears I can program the EEPROM chip however when I go to run the program I end up getting an error message that says "Invalid Header - Line 20" Does anyone know what that means or what am I missing. I have copied the original program off of our original EEPROM chip and that runs without any issues.