Hi John and all, The Czech table I am using incorporates the text_nabcc.dis file with the display opcodes. When this file is included, forward translation works fine but back translation doesn't work. If I comment out the include statement for the display file, then forward translation doesn't work correctly. For the letters "a" through "j" I get the numbers "1" through "0" in the output. The rest of the letters translate fine. The digits 0-9 also translate correctly. The letters are defined correctly in the table with the uplow opcode. What might cause this? Why does including the display file solve it? Best regards from Ohio, U.S.A., Vic E-mail: vic.beckley3@xxxxxxxxx For a description of the software, to download it and links to project pages go to http://www.abilitiessoft.com