Original von nono
i'm using debina woody. i installed it on 3 computers, using the same installation cd's, and only in one of them i got this kdm problem.
Ok, which source for KDE are you using? Ralf Nolden's?
You may need to do a purge of the kdm packages and a reinstall (a simple reinstall may also do the trick.)
apt-get --purge remove kdm #optional, may not be necessary
apt-get --reinstall install kdm