I have an Opt 11 C running rls 25 and when doing some acd report testing I outed tty 0. Now I can't put it back. In ld 37 it is not there, In ld 22 it is not there to print, and in ld 17 it wont let me build it. I can enter tty type, cab number and card number but when I put in port 0 it gives me sch5508 (port number already in use). Why? What have I missed?