No sound

[jini]

Hi, i have windows 7 installed on my hard disk. Today i want check compatibility with my hardware and i boot from iboot supported disc and then i put mac os retail dvd. I saw installation process so i decided to close this and reboot. After this on my windows 7 i have no sound. I try reinstall drivers but with no luck. Whats happened with my sound on windows?

 

[jini]

I install Snow Leopard on the other hard disk and i have still the same no sound on Mac and no sound on Win 7