Apple has posted Desktop Video Update 1.2.1, as noted by MacUpdate. Apple notes: “Desktop Video Out Update addresses an issue with Final Cut Pro HD 4.5 and Final Cut Express HD 3.0 when using Digital Cinema Desktop Preview (Main). This update is recommended for Final Cut Pro HD 4.5 and Final Cut Express HD 3.0 customers.” The update requires Mac OS X 10.3.9 or later and Apple Desktop Video 1.2.