I've read all the docs on eliminating the Accept Screen and am still unsure what will happen to the rest of the interface after the downgrade/upgrade. I have a 2002 X5 3.0i with a Mark III Nav. I have read that once you complete the process, you lose some of the Split Screen functionality. I am trying to get a grip on what you lose. If I lose the Emergency option, no big deal. If I lose the ability to split screen the Audio and whatever and the trip computer and whatever, I'm cool with that as I never ever stay on those screens. If I lose the ability to split screen the Navigation screen ie map on one side and direction on the other side, that's a big deal.