It just crashes without any warnings or error messages. When I run TBBRONZE.EXE there's a message box that says "This demonstration version of Tue BASIC will run for 15 minutes". After I close that, two windows will appear, a command window and a file open dialog. When I open a demo file (i.e. ARROW.TRU) the code editor will appear. It has menus such as File, Edit, Run, Window, Settings and Help for True BASIC. When I select the Run option from the Run menu, all the windows will just close immediately.