I have 842 and it only get's to the S's. I believe it is a memory capicity issue with BMW. Have you spoken to your local BMW people about it? My attitude is for the price of the car BMW are not very conducive to the technology. How much does a 4Gb USB stick cost?
If you like contact me off line and we can discusss wider BMW technology issues (map CD not updated in a timely fashion, address book lost on CD changer replacement, no backup of address book entries, etc.)
2009JN08 10:20 Sydney