[vlc] 5.1 problem vista 64bit

[maniekn1]

hi
today i tested vlc 0.9.2 on system vista 64 bit sp1 updated 16.09.2008 sound card creative x-fi fatality pro newest driver instaled, codec k-lite 4.1.7 ,DirectX 9.0c (Aug 08)amd athlon 64 x2 50000+ 1 gb ram asus motherboard (newest drivers) speakers creative gigaworks s750 and i have problem with vlc pliks .dts .avi .mkv with 5.1 audio and dts audio and dual audio problem only audio , video greatworks audio with thease pliks not working properly in center and sub speakers with cinemaplayers works very good
and a xp pro sp3 all update vlc 0.9.2 work perfrctly in the same devices in vista the same pliks .dts, .avi, .mkv work v.good in xp whats goin on fix it?! i not change system.