As the summary suggests, the toggleconsole button doesn't work on a german keyboard.
[17:48] <hoshi> mkay ... well another thing is that toggleconsole doesnt work on german keyboard
[17:49] <hoshi> thats quite strange tbh
[17:49] <hoshi> u usually got it on "^"
[17:49] <hoshi> somehow it doesnt really work in quakeworld ... no idea why tbh