I've had my 5D MKIII for a couple years now and never really had a problem. Shot a concert tonight, and when I checked out the photos, a handful looked like this:
Click image for larger version.  Name: DBT_night2_messedup.JPG  Views: 112  Size: 139.7 KB  ID: 2314
Not sure why this is happening. When I look at the file icon in Finder on the Mac, it shows up OK:
Click image for larger version.  Name: DBT_night2_messedup2.JPG  Views: 86  Size: 172.1 KB  ID: 2315
Some of the photos only have the color problem on half the image, with the other half looking normal. Anyone know what could be causing this? I was using a 24-70 II lens, shot at 1/320 at ISO 3200. Never happened before.