X11-forwarding with ssh stops

[Tim Dijkstra <tim@famdijkstra.org>]

I recently upgraded my little server with some inet services, a minimal
x-server and xemacs on it, from debian 2.2r3 to testing. Immediately
after that X11-forwarding with ssh stopt working. I use that feature a
lot so I really wanted that back again. I first double checked
configuration files, etc. After downgrading the ssh-daemon and xserver
it still doesn't work. Anybody got an idea what packges could cause the
problem? It is somewhat to vague for a bug report so I first try it
here.

thnx Tim