Is this a prank? Apr 1st?? This only happened to me today. I recently downgraded on my 5D3 from 1.2.3 to 1.1.3, following to procedure of uninstalling ML, disabling bootflag, installing 1.1.3, then downloading the latest ML Building for 5D3 1.1.3. The procedure on screen seems weird and unprofessional from the norm. Take a pictures of today date, Apr 1st of course, press the magic button? The trash can button? Also, when it "crashes" it still runs in the background and when you open the battery door it turns off. Normal crashes don't turn off just by opening the battery door, you have to physically pull the battery out. If it is a prank, cool, but could have been something less frustrating, especially if someone was shooting a production today. Sorry to ruin the fun if so. heh