Today Apple released a Pro Applications Update 2008-01. This update is described as:
This update improves reliability for Apple's professional applications and is recommended for all users of Final Cut Studio, Final Cut Server, Logic Studio, and Shake.
Final Cut Server was, as you may know, released on Tuesday. You can download this update by opening the Software Update app (Apple Menu > Software Update) or by downloading the installer package from the Apple support downloads website. You can also find more about this update by visiting the Apple support note.