vnc to :0 with Xinerama

[Kyle]

I'm trying to use vnc.so to connect to a linux console with dual 
monitors (in Xinerama mode).  In my logfile, I see:

 vncext:      VNC extension running!
 vncext:      Listening for VNC connections on port 5900
 vncext:      created VNC server for screen 0
 vncext:      Listening for VNC connections on port 6900
 vncext:      created VNC server for screen 1

So I do vncviewer host:5900 and I get a connection to the first screen.

Then I do vncviewer host:6900 and I get a connection to the second 
screen, but within a few seconds, my connection to the first screen 
closes itself.  If I try to reconnect to the first one, the second one 
dies.  I can only keep one open at a time.  Is this supposed to work?  
Is there a way to have a connection to both screens at the same time.