I'm using Ubuntu 14.04 LTS 64 Bit, would like to change some of my shortcuts, especially the Alt+tab combination (to switch applications). However it simply doesn't work: All changes under "Settings > Keyboard > Shortcuts" have no effect. I also installed the dconf Editor, but it isn't working either. Has anybody an idea what I could do?
(The reason why I want to change shortcuts is, that I'm playing an old video-game via wine, where one can't change the keybindings. Alt and tab have to be used a lot in that game, and because I'm playing in fullscreen-mode, this will totally break my session: The computer leaves fullscreen mode and opens up the desktop, and it's impossible to return to the game; I have to kill wine and start it again.)