A Mac OS 9.0.1 bug-fix is in the pipeline, Apple insiders say.

The update is expected to fix video, FireWire, Open Transport and 3D acceleration issues.

Sources say it will also contain support files for Apple’s new PowerBook range, set for launch at Macworld Expo in San Francisco in January.

The update is free to OS 9.0 owners and will be available via the System Software Update facility in OS 9.0.