[Paraview] Cave configuration assistance

[Terry Jordan]

I have a 3 wall system very similar to  a cave.  I am using paraview 2.2.1 
with the xml .pvx file.  Does anyone know how to use this correctly?  I have 
3 machines rendering and one for control and my xml file is as follows:

<?xml version="1.0" ?>
<pvx>
  <Process Type="client" />
  <Process Type="server">
  <Machine Name="ids1"
            Environment="DISPLAY=m1:0"
            LowerLeft="-1.0 -1.0 -1.0"
            LowerRight="1.0 -1.0 -1.0"
            UpperLeft="-1.0  1.0 -1.0" />
  <Machine Name="ids2"
            Environment="DISPLAY=m1:0"
            LowerLeft="-1.0 -1.0 -1.0"
            LowerRight="1.0 -1.0 -1.0"
            UpperLeft="-1.0  1.0 -1.0" />
  <Machine Name="ids3"
            Environment="DISPLAY=m1:0"
            LowerLeft="-1.0 -1.0 -1.0"
            LowerRight="1.0 -1.0 -1.0"
            UpperLeft="-1.0  1.0 -1.0" />

  </Process>
</pvx>

ids4 is control and I run the following commands and only 2 of the 3 nodes 
are launched and it freezes up immediately

ids1: mpirun -np 3 -machinefile /root/mpi.nodefile 
/usr/local/paraview-2.2.1/bin/pvrenderserver /root/passive.pvx
ids4: pvclient -sh=ids1 /root/passive.pvx

Any ideas?

Thanks.