Apple has released the Snow Leopard Graphics Update to address graphics problems in games and graphics applications. In particular, the update addresses frame rate performance problems in Portal and Team Fortress 2 on certain Macs, and fixes a bug that could cause Aperture 3 and StarCraft II to crash or freeze. Macworld is now reporting that the update can significantly improve graphics performance in other games as well. It's available via Software Update or the Apple Support Downloads page. (Free, 65.65 MB)
Keyboard-based Dock Navigation
If you're a fan of keyboard shortcuts and navigation, you may want try accessing the Dock from your keyboard. Press Control-F3 to enter the Dock's keyboard access mode. Then you can press a letter corresponding with an item's name to select it; press Return to open it, Command-Q to quit the selected application, or Escape to exit keyboard access mode. You can also use the arrow keys, Tab key, and other keyboard navigation keys to toggle between the Dock items.
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