macbook booting with wrong keyboard layout.

hello all,

i've got a 15 inch macbook pro with the latest os x. every time i reboot, it resets the keyboard layout to american english even though i preset it to swiss german. this means that i always need to go to the language settings and change it to my layout, which is quite annoying.

any suggestions how to solve this?

thanks a lot in advance and kind regards

jurg