Apple released two software updates today:

Audio Update 2007-001
The Audio Update 2007-001 addresses an issue with version 1.0 of the Mac OS X 10.4.10 Update in which a “popping” sound might be heard with some external speakers on Intel-based Mac. This update is recommended for all Intel-based Macs running Mac OS X 10.4.10.

This appears to address a bug that appeared with the Mac OS X 10.4.10 update.

Mac OS X 10.4.10 Update v1.1

The update provides:

- RAW camera support
- Mounting and unmounting external USB devices
- Support for 3rd party software applications
- Security updates

Run your software update to download and run these updates

Source : Apple.com