subwoofer present setting

Hope this is the right place for this. I have a Soiund Blaster Audigy 2 Platinum. I HAVE installed Creative's Drivers for Vista Beta 2 -
here's my issue:
When I choose "quadriphonic" From the Play Control Volume properties, the "Subwoofer present" choice is greyed out. Is nayone else experienceing this? In addition - with the "quad" choice chosen - I am only getting sound on my front two speakers and when I run the "test" fron the Test button - the test sounds meant to come out of the rear speakers is emanating from the front.
Is anyone else experinecing this?
Thanks in advance
George

Hope this is the right place for this. I have a Soiund Blaster Audigy 2 Platinum. I HAVE installed Creative's Drivers for Vista Beta 2 -
here's my issue:
When I choose "quadriphonic" From the Play Control Volume properties, the "Subwoofer present" choice is greyed out. Is nayone else experienceing this? In addition - with the "quad" choice chosen - I am only getting sound on my front two speakers and when I run the "test" fron the Test button - the test sounds meant to come out of the rear speakers is emanating from the front.
Is anyone else experinecing this?
Thanks in advance
George