Two weeks after the release of Mac OS X 10.6.7, Apple has issued a supplemental update that patches the latest OS release. The update is specifically for the 13″ MacBook Air model released late last year. The update reportedly fixes an issue that made the devices unresponsive when launching iTunes and clocks in at a tiny 461 KB.
According to Apple:
This update addresses an issue that makes the system unresponsive when using iTunes. It is recommended for all 13″ MacBook Air (Late 2010) users running Mac OS X v10.6.7.
You can grab this update via Software Update on your Mac or download it directly via support page.