key binding window won't open


i’ve been trying to change my key bindings in ardour 4. however, when i try to open the key bindings window (alt k) – nothing happens. i’m having this problem both when i use the shortcut (alt k) and when i try to do this with the pull down window from the window dialogue.

i am able to change key bindings on my studio desktop computer – only on the laptop am i experiencing this problem.

all the other windows in the window dialogue are opening without any problem.

i am using the current stable version of ardour 4. debian testing/jessie. lenovo t530 laptop (intel graphics chip).

has anyone else experienced this or know how i can solve this problem?

many thanks for any help.