MacBook Pro with Swiss keyBoard not working properly under linux redhat server 6.2

Hi,
i'm using a MacBook Pro with a Swiss Keyboard (Standard in Luxembourg) and i have installed a red hat enterprise server 6.2 under Parallels Desktop 8 fro Mac (build 8.0.18314) & Mountain Lion.
My Keyboard is configured as German (Switzerland) French (Switzerland, Macintosh) under linux os, which seems to be the correct keyboard according to the layout displayed.
Everything is working fine for first level keys and second level keys (basically minor case and upper case) but all third and fourth level keys like (like [,],{,},@,...) are not available.
Under Windows installed via Bootcamp normally the ALT key is giving access to those keys but it's not working under linux.
Any idea,

Thanks in advance,

Oliver.

 

Solved

Hi,

i have used the instruction in the following post (Settings > Shortcuts > System Shortcuts > "Send System Shortcuts" = Allways) and it seems to work.

http://forum.parallels.com/showthread.php?t=264815.

thanks.