This would be a big help to development oif one is using the GUI and something bad happens. The trace would have to be captured as a String and then passed to a method in Documentmanager. This method would in turn display it in a SWT MessageBox with an OK button or perhaps with the option to continue. More generally. liblouis and liblouisutdml were designed to be their own developmennt tools. How can this be applied to BrailleBlaster? Thanks, John -- John J. Boyer; President, Chief Software Developer Abilitiessoft, Inc. http://www.abilitiessoft.com Madison, Wisconsin USA Developing software for people with disabilities