How to correct aspect ratio of display on openSUSE 11.1

Problem: Circle is displayed as ellipse on the desktop.
Environment:
OS: openSUSE 11.1 i586, Desktop: GNOME.
Motherboard : GIGABYTE EP45-DS3R.
Video Card: Leadtek PX9500GT.
Video Chip: NVIDIA 9500GT.
Display: Dell 20 inch wide LCD, 1680 x 1050 pixel.

Advise me of how to fix this problem.
:’(

Are you using nvidia driver?
Also, what is the monitor you selected (Go to Yast and find out)?

To Parent Penguin.
Thank’s for your quick recommendation.

Then, reinstalled openSUSE by specifying “KDE”.
Found the same problem.

Logged in TaST2 control center, and changed “DELL 2005FPW(DIGITAL)” at specifications on Card and Monitor.

The problem is fixed now.

Good to hear that.