Can't output Digital Audio in Windows 7 (Macbook Air 2011).

Question

Hi All,
I'm using my MBA 2011 to play 3D Blurays Movies.
The problem is...
> Lion works fine (with HDMI audio) but i can't play 3D Blurays in LION, just 2D Blurays. [I can send...DTS/DOLBY etc etc to my RECEIVER with no problems using the "Moshi mini DP to HDMI adapter".]
> In Windows i can play 3D Blurays (using Power DVD, Corel Win DvD; Arcsoft total media...etc) but i can't use the mini DP digital Audio function as in Lion...(So i think i need a better support driver here....from Intel, Apple or
In the device manager i have an "Intel (R) graphics audio" """device""", but i don't have it listed as a device/extrernal-speaker in Windows interface, i currently have..."just the cirrus logic internal speakersdriver" and the "cirrus logic headphones analog output".
So, anyone know how to output DIGITAL audio using Windows 7 bootcamp?
Best Regards,
Sebastian.

Answer 1

Thanks for your comments. To answer your question theologos, the difference in battery life is huge. I only ran down the full batery in windows and it lasts for a little over 3 hours, depending on how you use it. Fully charged, OS X says I have a little over 7 hours to run although I've never tried to see if it actually gets that much. It seems to last a lot though. I almost never use OS X because I need to do run a lot of windows programs and a lot of statistics in Excel which is disabled by microsoft on office 2011 for mac. Heat levels in windows are acceptable. For general tasks CPU temperature stays below 70 degrees and the laptop is only mildly warm. Even playing starcraft 2 on full settings doesn't cause it to heat up to unomfortable levels.
I realise that graphics switching is disabled in Windows and I hate Apple for it, I know they are doing it on purpose. This is not a question of which OS is better, they both have their merits. However, my guess is this is done via the bootcamp drivers for windows. Since the AMD Radeon 6750 M has graphics switching and is able to perform it with no probs on other non-mac windows laptops I was wondering whether I could remove all the apple graphics drivers and install the default AMD ones. I'm specifically referring to the catalyst driver ackage off the AMD website for this graphics card. If the hardware is there and there are drivers for windows why would it not work on a Mac? If I were to format the system and simply install Windows how would the macbook pro know to keep the integrated graphics disabled? My worry is that if I install the AMD drivers and remove some of the bootcamp ones this might screw up bootcamp if it doesn't recognize them. Anyone tried to do this with any success?