Some times, according to your device, after a long navigation through menus and screens, some lists or buttons may not be displayed correctly.
This is due to memory leaks in the display methods. Don't worry, the memory is freed when you quit the program.
If it happens, a workaround is to close the program and then restart it.
Of course I will try to fix that issue in a future release.
I think that this problem shouldn't annoy you in a 'normal' use of the program, if it does don't hesitate to let me know.
