[K12OSN] lost my graphical login

[Michel Donais]

server Centos 5.9
When I setted up the server I was able to login graphical.
Ltsp 4.2 have been installed to night and now it's impossible to login 
graphical, even if in/etc/inittab runlevel is set to 5
on an other end the server was running KDE it's now running Gnome and no way 
in the preference i see the possibility to switch KDE.

Any iea to solve the ituation?


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Michel Donais