Thanks for reply. The problem computer is at work, I tried to SSH to it but couldn't find the address. Will post xorg.conf tomorrow -- about 20 hours from now.
The default xorg.conf created with radeon driver didn't have a "Monitor" section. I added one with Identifier and Modeline lines. Also added "Monitor0" to "Screen" section. That didn't work so I added HorizSync, VertRefresh, and Option "dpms" lines (shots in dark as I don't know what any of these do). Still no go on shifting monitor image.
For background, this is what I'm trying to do: http://www.linuxquestions.org/questi...ad.php?t=96702