Will, I've had a +8 for coming up to 9 years and have to say that I have never heard of the screens having a tendency to crack.
There is a watch point on fitting them though, the two fitting bolts on each side are of unequal length, get them the wrong way round and the longer bolt will crack the screen.
(Have to disagree with Bodger, waiting 6 months for a new screen is a reason to have a hissy fit with the MMC, not a reason to buy a Beemer)
Brian
