Windows 7: VIA HD audio deck

I have a problem with my audio drivers on my ASUS M3N78-VM integrated soundcard.
I can use any sounds but if my comp is on sleep and I wake it up, sounds wont work anymore. It recognises my sound card but cannot use it. Winamp says that I need to install compatible drivers, though i have downloaded newest drivers from ASUS and they didnt help.
This problem came when I needed to reinstall Windows 7.



Edit.
Seems like my network bridge messes my soundcard up.. I have installed Wlan card to my comp and bridged it to get mus sisters laptop to internet.. everytime she connects to networkbridge, my sounds wont work..
Didnt have this problem before I reinstalled Windows 7..