Used 10.0 sp3 to open a 9.1 sp10 saved file, no problem. Shows control unit, combo card, PRI, and DS 8 as 9.1.10.0 build 192. Used 9.1 sp 10 to pull config from control unit, shows control unit and all cards as 9.1.1000.192. Used 10.0 sp3 to "save config as" and tried to open saved config with...