Apple has posted Desktop Video Update 1.2.1 for Final Cut Pro HD 4.5 and Final Cut Express HD 3.0 users.

The company's release notes say: "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."

Users need to be running Mac OS X 10.3.9 or later and Apple Desktop Video 1.2 to install the 212K software update.