Got it going by re installing it, twice.
Feels like I am only getting a 2 channel signal from my HTPC.
Creative SB Z spdif out to Denon AVR 3805 in.
Testing my speakers using Creative's control panel:
Test right front and get audio out of right front AND right rear.
Test right rear and get audio our of right rear AND right front.
Same for left side. Set to 5.1 in control panel.
Same thing when testing is Windows Sound control panel.
Test speakers using receiver's test tone and speakers work individually, as they should. Receiver is set to 5.1.
Pretty sure it's a receiver setting as this is the second sound card to act this way. Just not sure where to look.
Win 8 Pro 64 bit
ASRock Z77 Pro3
16 GB PC1600
Creative Sound Blaster Z
Denon AVR 3805 (spdif out from sound card)
Def Tech BP 2006
CLR 2300 center