Having an issue with DMC in which I can not change a setting with either the IMS or World software. On either unit it will not allow me to change the number of cars to ONE, it stays at the defaulted TWO car , car runs fine, I just don't like leaving it set up wrong. The software was originally a "E" series, but last year TK "updated" it to an old "A" series , I can't remember ever having this issue on the past, but its been a while since I ran across "A' series software.