Switch off the wallpaper

[Mick]

Hi All,

I am using krdc (KDE's remote desktop client) to connect to a WinXP box which 
is running RealVNC as a service.  Although I have selected not to show the 
wallpaper/background on the server, to economise on the bandwidth, I keep 
seeing a badly dithered wallpaper every time I logon.  The reason I am trying 
to disable the wallpaper is that the server's ISP (NTL in the UK) has very 
high contention ratio and at busy times terribly poor speeds.  A 2M adsl line 
is performing as a dial up!

Do you know if it is possible to switch off the wallpaper and how?
-- 
Regards,
Mick