Creative continues to have totally crappy driver support...even 10+ years into the game.
I find it so ironic that i can buy an Audigy2 ZS and it runs fine with the drivers from the CD. BUT, when I apply ANY driver updates from their website, I get BSODs, staticky sound, no sound...you name it. Everything but a smooth running piece of hardware.
It's common sense that your piece of hardware (video card/sound card/network card/motherboard chipset) will run better with the newer drivers. Afterall; newer drivers have the "bugs worked out" etc.
This isn't the case with Creative. My Audigy2 ZS, which is 3+ years old, still runs best with the drivers off the CD that came with it...and who knows how old they are?!
/rant off