Can't change monitor resolution (openSUSE 11.0, GNOME)

Hi, I bought a Samsung SyncMaster 2243LNX (22 inch) and want to use it
as primary display for my laptop. The laptop monitor is supposed to be
disabled. But neither I can disable my laptop’s monitor nor I can change
the resolution of my SyncMaster (only a part of the screen is shown,
right and bottom are missing). I tried to configure with SaX2 but
without success. I am using openSUSE 11.0 with GNOME.

When using KDE 4.1 i can change the resolution with a program called
“Display”. But after a restart it changes to the old one…

It’s not so important to get this running under KDE 4.1 but under
GNOME. Can you help me?

Thanks in advance!



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