[Grml] Unmet dependencies ?

[Hubert Gabler]

After installing grml on HD using grml2hd I ran apt-get update and
apt-get upgrade. This resulted in
a) downloading some 300 MB of data and
b) this message:

"The following packages have unmet dependencies:"
followed by some 20 lines like this:
"xserver-xorg: Depends: xserver-xorg-core (>=2:1.3.0.0) but
2:1.1.1.1.-11 is installed"
......
......
The suggested workaround "try using -f" did not change the situation.
How can I install the right dependencies?
Hubert