The information in this article applies to the following configuration(s):

• Radeonâ„¢ X1950 series
• Radeonâ„¢ X1900 series
• Radeonâ„¢ X1800 series
• Windows Vista 32-bit Edition
• Windows Vista 64-bit Edition

Symptoms:
Disabling Crossfire makes aspect disappear and displays an “incompatible Display Adapter” message. Upon reboot, aspect appears again

When you try to upgrade the video driver on a Windows Vista-based computer, the screen may go blank. In this situation, nothing happens when you move the mouse or when you press CTRL+ALT+DELETE. If you turn off the power and then restart the computer, the desktop is displayed correctly. However, you receive an error message that states that the newly installed driver is incompatible with Windows Vista.