VNC gives me a 'tiled' screen

[Neil Woolford]

Hi,

I'm playing with Remote Desktop and VNC, as I hope to be able to access my 
brother's machine
in France from my machine in England for maintenance purposes.

Initially for testing I've set up two concurrent user sessions on my local 
machine.  One for me, and one
representing my brother's login.  I can switch between the sessions, which 
both appear to work fine.

I then try to access my brother's session from mine, using the Gnome VNC 
Terminal Server Client.
I address his session as 127.0.0.1:1 and then start the client, which gives 
me a blank VNC window.
I switch to his session and accept the incoming connection.  So far so 
good;  my session has attempted
to connect to his, and his session has authorised the connection.

When I switch back to my session, things start to go wrong.  The VNC window 
is no longer blank, but
doesn't show a recognisable screen.  What I see is either a set of 
horizontal bars, or more often a tiled
display that looks like a series of interface buttons.  The remote cursor 
does respond to mine, but is
slow and doesn't always finish in the correct position.

A quick play with the display settings in the Terminal Server Client hasn't 
solved the problem.

Any ideas?

Neil
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