This firmware update (Version 1.0.5) incorporates the following fixes and improvement.:
1. Fixes the printing of lens names when using PictBridge.
2. [Redeye 1] can now be selected when connecting with specific printers.
3. Improves the reliability of communication with the Speedlite 380EX.
Слить и почитать о процессе установки можно здесь: http://www.canon.co.jp/Imaging/eosdigital3/e4kr3_firmware-e.html