since 1 hour I'm a proud ubuntu user. But there is a problem, I'm not able to solve: the "STRG + ALT" shortcuts doesn't work (for example "STRG + ALT + Q = @").
I checked all German keyboard configurations I can choose from with no success. I have the problem with every application. Alt Gr doesn't work either.
Please help me, because I want to be a happy Ubuntu user.