If possible, allow a default windows position and size. When I ran the player for the first time, the window was located on the left side of the monitor screen. When I move it to the right, check "Remember windows size and position" in the interface configuration, select "apply" and "ok," then quit and run the player, the window remains on the right side of the screen as expected.
However, when I "Remember," "apply," press "ok," quit, and then run the player, the window shows up on the left side of the monitor screen. (I'd like to do this because if I accidentally move the player window and quit, the new window position and size won't be saved.)