[wellylug] Screens

[E.Chalaron]

Hi all
As usual my contribution to the list will be a question.

I am using Cinelerra for controling my movie transfers (colors etc ...)

Having one video monitor to control the output I need to share it among 
several machines.

For now it is on machine A.
Machines B, C and D having Cinelerra as well. all of them Ubuntu or Debian

There is an option in Cinelerra where I can indicate the video driver 
and the display. I did a bit of RTFM but the manual is somehow not complete
some guys have been using :
localhost:0.1

I guessed it was the numbers related to the PCI on the host

Lspci on machine A giving me :
05:00.0 VGA compatible controller: nVidia Corporation NV43 [GeForce 
6600] (rev a 2)

In my case it should be something like
machineA.chalaron.org:5.0

Of course it does not :-X work, a matter of understanding really.
Any idea or links ?

Thanks a lot
E