This article discusses virtual address space usage in Windows game development. The article describes potential problems that may occur when you run applications in a modern operating system such as Windows Vista. The article contains information about an update that may resolve some of these problems. For more information about these problems, visit the following Microsoft Web site:
www.microsoft.com/whdc/device/display/WDDM_VA.mspx

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

• World of Warcraft
• ATI Radeonâ„¢ HD2900 series
• Windows Vista 32-bit Edition
• Windows Vista 64-bit Edition

Symptoms:
Playing the game with wide or narrow tent AA filters result in wireframe flashing

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

• Day Watch
• Radeonâ„¢ X1800 series
• Windows Vista 32-bit Edition
• Windows Vista 64-bit Edition

Symptoms:
Playing the game may result in flickering being noticed

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

• Gods: Land of infinity (demo)
• ATI Radeonâ„¢ X1950 series
• ATI Radeonâ„¢ X1900 series
• Windows Vista 32-bit Edition
• Windows Vista 64-bit Edition

Symptoms:
Having the in-game options set to 1920X1200 32 bpp, Shadows on high and texture quality set to high may results in only the mouse pointer being visible.

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

• Call of Duty United Offensive
• Radeonâ„¢ HD2400 series
• Windows Vista 32-bit Edition
• Windows Vista 64-bit Edition

Symptoms:
System hangs after a few minutes of running Call of Duty United Offensive with maximum in game settings i.e. screen resolution 2048×1536 and Catalyst Control Center 3D Settings set to Optimal Quality.

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

• Rainbow Six Vegas
• Radeonâ„¢ HD2900 series
• Windows Vista 32-bit Edition
• Windows Vista 64-bit Edition

Symptoms:
Setting the display resolution to 1600X1200 and applying the in-game settings to high may result in corruption being noticed when using HDMI display device.

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

• Lost Planet
• Radeonâ„¢ HD2900 XT
• Windows Vista 32-bit Edition
• Windows Vista 64-bit Edition

Symptoms:
Setting AA to either 4x or 8x may result in the game failing to respond

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

• Quake 4
• Radeonâ„¢ X 1650 series
• Radeonâ„¢ X 1600 series
• Windows Vista 32-bit Edition
• Windows Vista 64-bit Edition

Symptoms:
Playing the game with CrossFire enabled results in corruption being noticed after a short time of game play

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

• Pacific Fighters
• Radeonâ„¢ X1950 series
• Radeonâ„¢ X1900 series
• Windows XP
• Windows XP 64-bit
• Windows Media Center Edition
• Windows Vista 32-bit Edition
• Windows Vista 64-bit Edition

Symptoms:
In the Catalyst Control Center, enable Crossfire and SuperAA.  Dark corruption may be noticed when flying close to the ground.

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

• Prey
• Radeonâ„¢ HD 2600 series
• Windows Vista 32-bit Edition
• Windows Vista 64-bit Edition

Symptoms:
A blank screen is displayed when trying to load game if AA is set to either 4x or 8x and filter wide tent is used with Crossfire enabled.