Hi Mesar, I've looked at your test harness. It looks good to me. We already have a tests directory. The tests there check tables for validity. Your code checks for accuracy of transltion. Could the test harness be placed in the tests directory? Thanks, John -- John J. Boyer; President, Chief Software Developer Abilitiessoft, Inc. http://www.abilitiessoft.com Madison, Wisconsin USA Developing software for people with disabilities For a description of the software, to download it and links to project pages go to http://www.abilitiessoft.com