Hi Lars,
I haven´t heard about the problem which occurs with a Logitech-Joystick, but we have experienced problems with Logitech-cordless-mouse-drivers...which e.g. use some F-keys which collidate with F-keys be used by WDP and therefore WDP either terminates its session or in another case, WDP always got in "Emergency Stop" (also caused by the Logitech-Driver).
Sorry, no help from my side possible in this case.
Regards
Rüdiger