I have the Creative SOUND BLASTER X-Fi Platinum with the Logitech Z5500 and it's really frustrating.
Here is what happens...
the center speaker
becomes front left
the front left
becomes front right
and both rear speakers
Yes, I have it set to 5.1 in both PC control panel and the X-Fi control panel.
And I know all the speakers are hooked up correctly because I tested them independently without the computer with the built in pink noise.
I have it hooked up to the audio card using the 6ch direct cables (green, black, pink).
I looked on Logitech's website and found this:
How can I get Digital 5.1 Surround Sound on my Z680/Z5500 via a Sound Blaster Audigy 2?
In general, you must disable any software and/or hardware decoder on your PC. You will need to do this because the Z680/Z5500 decoder will not be able to decode an already decoded signal. If a software or hardware decoder on your PC is active, the Z680/Z5500 will play the audio in only 2 channels, rather then 5.1.
Different audio card but maybe the same thing is applying here.
Somebody please help me put and end to yet another of my problems.