Actually, I was in error regarding the resolution. I used the wrong procedure for getting a modified xorg.conf to work.
Editing the xorg.conf file, logging out, then logging back in sets the resolution to 1024x768 (see also bug 255561, with the same monitor but a different computer and display card).
So this is solved, but of course a tool for modifying xorg.conf would be very useful.
Actually, I was in error regarding the resolution. I used the wrong procedure for getting a modified xorg.conf to work.
Editing the xorg.conf file, logging out, then logging back in sets the resolution to 1024x768 (see also bug 255561, with the same monitor but a different computer and display card).
So this is solved, but of course a tool for modifying xorg.conf would be very useful.
Thanks for all your help!