vncview window disconnects unexpectedly

[Stephen DiMilla]

Hi folks,
I'm looking for some help with a simple situation.

I have vncserver free edition 4.1.2 running on a solaris 10 unix machine
(but it could also be solaris 9, it doesn't matter).

If I use vncviewer  free edition 4.1.2 (running on windows) to connect 
to that machine running the vncserver
everything works fine.
If I leave my windows machine for say an hour (go to lunch), when I come 
back the vncviewer window
no longer is running on my windows machine. This behavior also happens 
if I run the viewer on
a solaris machine as well.

Anyone know why the disconnect is occurring and how to stop if from 
occurring.

Thanks
steved