three kX driver problems

Bosee

I am install the kX 3529 driver and found
three problems:

1: Use WinDVD platinum and set to 5.1 channel to
play dvd, front and rear channel only hear harshness
noise, center and subwoofer no any sound. in speak test of
kX Mixer, also hear the silence on center and
subwoofer. but i use creative driver no this problem.
May be a bug?

2:No record device found,I can't record the voice from Mic or Wave etc. use creative driver no this problem too.

3: this version of kX mixer, response time much slower
than previous version. for example, changing the
"Master" page to "ins 'n' Outs" page will cost
about 3 seconds.

My PC is Duron 800MHz,KT133E chipset,256M SDRAM,
SB Live! 5.1 Digital, Windows XP Professional with SP1.