problems with accessing X apps with ssh

[Nigel Henry <cave.dnb@tiscali.fr>]

I'm having a problem accessing X apps from FC2 to Debian Etch using ssh. I can 
ssh in to Etch ok, and can display stuff like lsmod on FC2's CLI, but if I 
try to run Gedit, Kwrite, or any other Xapp it's a no go. I tried 
in /etc/ssh_config on Etch uncommenting the line.
ForwardX11Trusted yes

This though hasn't resolved the problem.

Any suggestions?

Nigel.