Canon released new 5D Mark III Firmware Version 1.1.2:
Canon U.S.A. : Support & Drivers : EOS 5D Mark III (http://www.usa.canon.com/cusa/support/professional/professional_cameras/eos_digital_slr_cameras/eos_5d_mark_iii?pageKeyCode=prdAdvDetail&docId=0901e02480543ad5)

You can download the firmware from here:
Canon U.S.A. : Professional Imaging Products : EOS 5D Mark III (http://usa.canon.com/cusa/professional/products/professional_cameras/digital_slr_cameras/eos_5d_mark_iii#DriversAndSoftware)

Firmware Version 1.1.2 incorporates the following improvements and fixes.

1. Supports a new accessory, GPS receiver GP-E2.
2. Fixes a phenomenon where a pink cast may develop over the image when the shutter is completely pressed with the camera’s power turned off (by the auto power off setting).
3. Fixes a phenomenon where the camera operation stops after one shot when shooting in High Dynamic Range (HDR) mode.
4. Fixes a phenomenon where the Shooting Date/Time in the EXIF data of the image shows a later time than the actual shooting time.
5. Fixes the time zone for the Samoa Islands.
6. Corrects errors in the Finnish menu screen.

This firmware update was also mentioned within a previous thread a few days ago:

http://www.dvinfo.net/forum/canon-eos-5d-mk-ii-mk-iii-hd/506920-canon-mk3-canon-admits-exposure-error-low-light-illuminated-lcd-panel.html