I have a problem with the programs, since they appear as not load in the teach pendant. Before that I had a problem with lack of memory in the teach pendant, I installed a software option to enable a variable that would let me install external memory. After installing the 2GB external memory, I moved the CMOS (Teach pendant memory) programs to File (External Memory) and out of nowhere the programs appear as not loaded. i have to do a cycle power each that happen. Do you know why that happens? can you help me?