AC3 not working

[JeepHed]

I'm trying to get my AC3 to work again. I rebuilt my PC and I only installed XP, Zoom Player 2.90, DivX Bundle 5.0.2, and the AC3 regester files. I have an All In Wonder video card pluged into a TV I use as a monitor. I also have a SB Live Card for sound pluged into a Sony Receiver. I was getting the blue light on the reciever that told me the AC3 was working in true 5.1 but now I get nothing. Does anyone know how these filters work and why they are giving me problems?
Thanks in advance for any help you can give.

[revup67]

Seems to me the problem is with the "output" of your sound card. You need to designate that your output to the Sony amp is 5.1 not 2 channel stereo which is probably the default configured within the sound card software.

Rev