Apple has updated
Final Cut Pro
to version 4.0.1. The upgrade is only available by using the Mac OS X Software Update preference pane and after installing the Pro Applications Support 1.1 package — also available via the Software Update.
Pro Applications Support 1.1, in Apple’s words, “provides improvements for Apple’s professional applications, and is strongly recommended for all users of Final Cut Pro, Cinema Tools, Compressor, LiveType, Soundtrack, and DVD Studio Pro.” The Final Cut Pro 4.0.1 update provides performance improvements and enhancements in several areas.
It also resolves some “rare instances” in which the application would stop responding, according to Apple. The 4.0.1 update includes changes regarding opening and closing the Trim Edit window; opening clips with speed changes in the Viewer; rendering speed; and playback.