i see -- my bad. i didn't know you were installing different languages.
let me just leave this parting -- mmm advice, for lack of a better word. and this will depend on if your preferences have what my preferences have. in system preferences/language and text/input sources/ there a little box you can check at the bottom that says "show input menu in menu bar." once you do that, pull down to "show keyboard viewer" and a floating keyboard will show up. so as you press various keys on your keyboard, you can see, visually, the effect of the key you press.
but much more importantly, in all the pull down menus, in every application that exist, the keyboard command shortcuts are listed in the pull-down menus. for example, in the Finder, under the Go menu, one can see shift-apple-C next to the word "computer" in the pull-down menu. likewise, under File in the Finder one can see command-n next to the words "New Finder Window." so as you go through different languages, you can see what keyboard commands are unified, and any differences.
i know the answer to your problem with this lies in the /system preferences/language and text/input sources/ i think you need to enable all the languages you want to use on every machine -- so every machine has the same six or seven languages enabled on them, under Input Sources. when i enabled three languages on my machine, some more preferences magically appeared (honestly) in the Input Sources tab in the Language and Text prefpane. once you have all the same languages enabled on all your machines, then you need to click the "Keyboard Shortcuts" button and unify everything manually and fix the ones that have an exclamation point next to them.
lol it is a mess. i'll tell ya what. i go to this site called macupdate.com that list about 80 shareware application daily. i read through them in my spare time; it's my hobby. and one day i'm sure i'll come across a shareware application designed just to fix this problem you are dealing with. when i do i'll email you link to the application. i am bookmarking this page so i'll be able to email you if i ever come across what u need. whew --
here's some i looked for real quick:
http://www.macupdate.com/info.php/id/34172/keyboard-pilot
http://www.macupdate.com/info.php/id/6134/quickeys-x
http://www.macupdate.com/info.php/id/14495/ukelele
http://www.macupdate.com/info.php/id/14861/keycue
http://www.macupdate.com/info.php/id/25141/keyremap4macbook
yeah i'm a WASP 🙂 but i was bored and you gave me a puzzle to try and solve -- now i'm a wore out wasp -- you couldn't have an easy little problem could you. eeeee goodnight