Problems setting up remote pc control

[Thomas H. George]

I have installed gvncviewer on the client pc and vnc4server on the pc to 
be controlled remotely.  The command vncserver on the pc to be 
controlled responds

New: 'raspberrypi:2 (pi)' desktop is raspberrypi:2
Then the command gnvcviewer 192.168.1.2:2 on the client machine responds 
asking to the password which was chosen for the vncserver.  When this is 
entered I get a white screen, no desktop.

Any suggestions?