EOS-1Ds Mark II Firmware Update Version 1.1.2
Canon has released a firmware update for the Canon EOS-1Ds Mark II cameras, no mention of fix for compact flash card incompatibilites.
From the website:
This firmware update (version 1.1.2) includes the following additional functions and improvements:
1. When pressing the DISPLAY button immediately after shooting, the LCD monitor would turn completely white, the camera would hang, and the images in the buffer memory would be lost. Countermeasures for this issue have been incorporated into this update.
2. Errata in the German and Russian language displays have been corrected.
No mention of the issue regarding image loss due to incompatibilites with certain Lexar cards. See PSN article Digital SLR Image Disappearance
Go to the firmware download page
(Note: a camera serial number is required to download the firmware update).