The message is not shown fully, but the final word is cut at 1/3 approximately
Moving to 0.4.0rc1.
Created attachment 655 Suggested fix This patch should fix the problem.
I confirm that the patch fixes it.
Committed with revision 22398. 2006-07-10 Benedikt Meurer <benny@xfce.org> * thunar/thunar-progress-dialog.c(thunar_progress_dialog_percent): Do not truncate the text in the progress bar. Bug #2003.