X and Fluxbox :: XFree86 with special characters

After successfully running a full version of XFree86 on my Vaio C1VE there is still a problem to be solved.
My chosen language is de-latin1-nodeadkeys.
On the console - only outside of X-windows! - all the characters could be generated by pressing AltGr and another key. @, \, German umlauts and so on is easy.
Within the X environment only umlauts are possible. If I´m pressing, f.i., AltGr+Q on my German keyboard this should produce @ but there is only a beep from my speaker and nothing goes.
I´ve been searching the board, googling the web up and down trying several configurations in my XF86Config-4 but no success.

The only thing that seems to work is the following:
xmodmap -e "keycode 113 = Mode_switch"
xmodmap -e "keycode 24 = q Q at"
xmodmap -e "keycode 10 = 1 exclam onesuperior exclamdown"
xmodmap -e "keycode 11 = 2 at twosuperior onehalf"
xmodmap -e "keycode 12 = 3 numbersign threesuperior threequarters"
xmodmap -e "keycode 13 = 4 dollar Ooblique onequarter"
xmodmap -e "keycode 16 = 7 ampersand braceleft"
xmodmap -e "keycode 17 = 8 asterisk bracketleft oneeighth"
xmodmap -e "keycode 18 = 9 parenleft bracketright"
xmodmap -e "keycode 19 = 0 parenright braceright"
xmodmap -e "keycode 35 = bracketright braceright asciitilde"
xmodmap -e "keycode 49 = grave asciitilde degree"
xmodmap -e "keysym e = e E EuroSign"
xmodmap -e "keysym m = m M mu"

Now I´m looking for a way to get this automatically done.
Maybe someone found another way...

Andreas

Did you make sure to restart the x server afterwards?

You can probably add those xmodmap commands in ~/.xinitrc

If you want to change the config around instead, there's quite a number of guides out there, i.e. http://archives.postgresql.org/pgsql-admin/2003-06/msg00339.php

original here.