Graphic application with Xen?

[Balbuzard]

Hey,

Is there any way to make working graphic applications in VM of Xen by X-Frowarding?
Here is what I have tried:
from the graphic server (Dom0)

xhost + 192.168.10.101

I have also modified the /etc/X11/xserverrc uncommenting the no-listen tcp option, and the /etc/ssh/ssh_config to add XForwarding=yes

From a VM:

export DISPLAY=192.168.10.228:0.0

And when I start my graphic application, this error occurs:

Error: Cannot open display: 192.168.10.228:0.0

I have had a look in google, without any success.
I would like to avoid ssh -X.

Thank you a lot for your answer and your help!