AMD was a little too early in May with its monthly Catalyst driver release, with the Catalyst 11.5 WHQL reaching the web as early as 9th May (typically monthly Catalyst updates are released after the 24th). On the same date, AMD also released its first hotfix update for the Catalyst 11.5, the 11.5a Hotfix Update, which packed a number of game-specific performance improvements. Today, the company released its second such update for the month, with Catalyst 11.5b Hotfix.

The update is rushed in to fix a number of issues found with the recently-released game, Brink. It also fixes a number of non-gaming application issues, particularly related to media decoding. In the process, the driver also brings with it a number of game-specific performance improvements, games including Civilization 5, Dead Rising 2, Fallout 3, Mafia 2, NBA 2010, ShenGuiChuanQi, Starcraft 2, Warcraft III, World of Warcraft, and Dirt 3.

DOWNLOAD: AMD Catalyst 11.5b Hotfix Update.

A complete list of changes follows:

• Includes performance optimizations and resolves various quality issues for the upcoming release of Brink
• Resolves transcoding video lagging issues seen when converting multiple H.264 clips to MPEG2 Blu-ray video
• Resolves the intermittent mouse cursor lag issue seen by some users
• Resolves intermittent flickering issues seen in the following applications in a system using an AMD Radeon HD 6000 series graphics card with DDR3 memory and running in DirectX 9 mode:
  o Civilization 5
  o Dead Rising 2
  o Fallout 3
  o Mafia 2
  o NBA 2010
  o ShenGuiChuanQi
  o Starcraft 2
  o Warcraft III
  o World of Warcraft
• Support for additional Stereo 3D-capable displays:
  o Viewsonic V3D241wm-LED
  o 3D Projectors
• Enables AMD CrossFire scaling for Brink
• Enables AMD CrossFire scaling for The Witcher 2
• Improves performance for Dirt 3