The Leopard-compatible betas of DT Pro/Office 1.3.4 that were announced today (15 November, 2007) at http://www.devon-technologies.com/phpBB2/viewtopic.php?t=5386&start=0&postdays=0&postorder=asc&highlight= will not run under OS x 10.3.9.
If you are running under OS X 10.3.9 do not install the DT Pro/Office versions in the series 1.3.4 or later. They will not run properly if at all on your computer.
It’s likely that version 1.3.3 will be the last version capable of running under OS X 10.3.9. Apple has greatly enhanced the operating system and future DEVONtechnologies development will use those enhancements.