I can not key the TNC with WinFBB 7.00i. It keys fine with the same cable, using PacTerm or WinPack. It ran on Win98 SE, same setup. FBB seems to communicate with the Kantronics KPC-3 okay at 9600 in host mode - at least, the program doesn't complain. Any suggestions, please? 73, Mac, W1FYM