I'm new here, but bought a Golf R in September. I've had the blank screen issues a couple of times - this morning in fact. Everything seems to work, you just cant see anything!!
When it happened a month or so ago, when it came back I had to reset all the DAB stations. Not sure if its part of the same issue, but since new I've had an annoying rattle from behind the info screen at 2-2500 revs (not there much!!)
VERY annoying since the reason for a new car was not to have these sorts of issues. I will try the reset advice above and see what happens. Love the car as a whole, but not impressed with build quality at the mo. My first VW, and I never thought that an STi 330s would be less rattley!!!!!