I have trouble when I open the avid free dv program. it's happened when the audio initializing I have a comment ADM_SOUND_MIXER_OPEN_ERROR and if I click "OK" the program always closed. Is that because I don't use external sound card (for info my soundcard is onboard realtek HD) or any mistake with my installation.... thanks before I hope there is a sollution with my problem....

Hi,

Do a search of the forums for "realtek" as this is a pretty common error with Realtek audio.  There are a few different things you can try, and the search results will have posts that guide you through them.

good luck,
Carl

thanks a lot carl....

I will try it.