Peculiar effect with keyboard -again

[Simone Bowskill]

Hello All

Thanks to all who have replied but so far no joy.

I tried 'dpkg-reconfigure xserver-xorg' from the root terminal (thanks 
Morgan), - the command ran but did not cure the effect.
The effect is: after  the Xserver has started, pressing any key  only 
causes an 'alert' sound to be issued. Before the Xserver start (when in 
maintenance terminal mode) the keyboard behaves normally.

I am using Lucid Lynx.

I am sending this from my Wife's computer because of the effect 
explained below:

On start up, I reach the normal login screen and can log in normally - 
from the keyboard.
When the full normal window manager display comes up, the keyboard 
ceases to function - pressing any key issues the 'alert' sound.
The mouse is OK.
I then restarted and selected "repair broken packages", then "normal 
start" - the same effect was present.
Restarted again but entered terminal mode - the keyboard behaved perfectly.
Exchanged the keyboard with one that is OK (the one I am sending this 
message on) - same result as before.

It would seem that when the X-server/window manager starts, the keyboard 
becomes disabled pressing any key causes an 'alert' sound

Has anyone any ideas what would cause this and how I can fix it ??

Many thanks in anticipation

David Bowskill