Canon releases firmware version 1.0.8 for the EOS-40D digital SLR camera. This update incorporates following improvements and fixes:
• Fixes a phenomenon in which the Image Stabilization operation emits a sound from the lens when IS lenses are attached to the camera.
• Fixes a phenomenon in which a part of the image looks unnatural when reviewed on the LCD.
• Corrects errors in the Spanish and Norwegian menu screens... via dcviews.com

You can download the firmware update here. You can buy the camera here