j´ai retrouver . .. :
With the nVidia GeForce FX video cards, we have been able to replicate a known issue in which the user is playing with both the 61.77 drivers and the nVidia Image Settings set to “High Performance”. One of the effects of this combination is missing terrain features. However, there are several viable solutions for this issue.
1. Upgrade to the latest nVidia driver version. These can be downloaded from http://www.nvidia.com/content/drivers/drivers.asp. Make sure to download the drivers, uninstall any existing drivers, reboot into safe mode, install the new drivers, and reboot one more time. This avoids any potential conflicts caused by different driver versions.
2. Change your video settings to “High Quality”. This can be accomplished by the steps given below ( on Windows XP):
1)Right click on your desktop and select Properties. This brings up the Display Properties control panel.
2)Click on the Settings tab.
3)Click on the Advanced button.
4)Click on the GeForce tab.
5)Select Performance and Quality Settings in the left window.
6)In the Global Driver Settings window, select Image Settings.
7)Move the slider in this pane to the right, which is High Quality.
The video cards that are affected by this issue are:
•GeForce FX 5200
•GeForce FX 5200 Ultra
•GeForce FX 5500
•GeForce FX 5700
•GeForce FX 5700 Ultra
•GeForce FX 5700LE
•GeForce FX 5900
•GeForce FX 5900 Ultra
•GeForce FX 5900 XT
•GeForce FX 5950 Ultra
•GeForce PCX 5300
•GeForce PCX 5750
•GeForce PCX 5900