As dreaded, Mac OSX 10.4.11 kills TD 2.3.9. 10.4.11 contains Safari 3, which is known to change dock characteristics that render TD unusable.

To the developer: Your product was always the best, I loved that you did it without doing illegal commands the way haxies do. I realize this may be the end of the line for TD in its current form, but I always looked forward to using your product, and Thank You for all the development you did do for us all these years. You were(are) the best gui enhancement, and I always appreciated you.