F1 2011 rapture versus software sound after patch

[Piet Dekimpe]

hello,

after the patch installed, I immediately noticed the sound was much better on my surround system.
I noticed in the audio menu that there was now " rapture" instead of software.
The sound in the car with every surround sound was so much better than before the patch......
However when I closed the game and started again, " rapture" was gone and software was back and gone were the beautifull sounds again...... I cannot switch to rapture ingame anymore

Anyone can help me out putting the audio device on rapture again?

Thank you