Anyone else notice this? I was playing around with the audio settings for Power DVD Ultra. The speaker setting choices are headphones, 2, 4, 6, 7, and 8 speaker setups. How about 5 speakers? I have an onkyo 7.1 reciever but I only use it for 5.1 sound because my theater room is kind of small. It doesn't make sense to me that they wouldn't list a 5 speaker setup. I have a creative soundblaster live! 24-bit sound card and I use a digital optical audio cable to connect my computor to my reciever. Power DVD Ultra doesn't seem to be sending the correct audio signal to my reciever. Anyone have any ideas?