SLED installation:

For direct application on a PC or a VNC connection, it is not possible for me enter an "accent aigue" or a "grave accent" .
When an RDP connection already.

Installation and Keyboard Layout: German

I've also tried from a SLED11 application by the xmodmap-pke modmap to export and then xmodmap modmap be recovered through the SLED.
Then I got no matching keyboard layout more.

Is there a workaround for the problem?