Hi,
I use AMD64 gentoo o my box and I experience problems with keyboard  
switching. Namely it is impossible o switch with Shift-Shift that is  
specified in xorg.conf and even worse, if I specify two keyboards (czech  
and english) in xorg.conf it is impossible to switch to the console. This  
results in the gnome start error saying that there could be several souces  
of problems (xkb, X, libxklavier). I am not sure where the problem could  
be. I tried to recompile everything connected to xkb and Xorgand also  
different versions, but it persists. Fortunately setxkb works, but I do  
not consider it to be satisfying. Could anyone advise? It would be helpful  
also t point to some way of debugging as I have no idea.
   I attach my xorg.conf. My gcc is x86_64-pc-linux-gnu-4.1.2 *, profile  
2006.1.

   Thanks for advices
   Lukas