Canon have released a new version of firmware for the Canon PowerShot S1 IS digital camera.
 
Firmware specification changes (Version 1.0.2.0)

- Improvements in the communication processing with the CF card.

* This update includes the previous firmware update (version 1.0.1.0) as well as the current one.

- Specification changes for the way images are displayed in Continuous AF Mode.

- Improvements for the overexposure phenomenon that occurred during daytime synchronized shooting.

Website: http://www.canon.co.jp/Imaging/pss1is/firmware-e.html