Thanks for the suggestion. I was not sure if it would work but it did.
When i first upgraded to windows 7 and by bd player was not working i did check device manager and it did not have the roll back option so i was sol.
I guess i got a drive update since then and the feature was availble this time so i tride it. Much to my suprise it worked better than i would have thought.I now get digital dts and dolby digital out to the receiver. That makes me a very happy camper by the way.
Thanks again for the suggestion
pb