The file ~/.vnc/xstartup contains commands that are executed once Xnvc. 
I believe the default is to start an xterm and run twm.

The other machine must be querying for XDM hosts.  The way I do this is
on the command line to vncserver:
vncserver -depth 8 -geometry 1400x1050 -query machiavelli

and then I comment out everything in the .vnc/xstartup file.

 -Gordon

On Wed, 2002-11-13 at 01:06, DarthLinux wrote:
> interesting- i'm running VNC on 2 different boxes..
> one rh7.1 the other rh7.3
> but the default <interface?window manager?> is different..
> 7.1 seems stripped down - geared for dealing with dial up bandwidth,
>   while 7.3 is more like an actual login and x session with sawfish..
> my question:
> how do i switch back and forth, should i want to..?
> 
> Darthlinux
> 
> Knowledge is a powerful tool to those who understand how to use it-
> but it is an awesome destructive force for those who only think they 
> do...
> 
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-- 
  Gordon Chamberlin             Software Architect
  Visualize, Inc.               http://www.visualize.com
  (602) 861-0999 ext. 14        glac@visualize.com