Screen set-up

[Keith Powell]

I haven't seen this problem on the list, so I hope it hasn't already 
been answered!

After installation, the desktop and, consequently, the applications are 
shifted well to the right on my monitor screen.  The left side of the 
desktop is well away from the edge of the screen (giving a wide band of 
black), while the right side is so far over, that I can't see the "trash 
can" or the scroll bars.

I am running two other distros and have tried several others.  With all 
of these, the desktop is correctly positioned, almost touching the edge 
of the screen on either side. It's just Ubuntu which is giving me this 
problem.

Is there any way of altering the desktop's position in Ubuntu and move 
it to the left? I can't find a way.

If I physically alter the settings of the monitor, all other distros are 
wrongly positioned.

The monitor is an LCD and Ubuntu is set to the correct settings of 
1024x768 at 75Hz.

Many thanks

Keith