Solved Win 7 doesnt recognize headphone

I have installed windows 7 today, I downloaded updates and now back jack is working for speaker, but it doesnt recognize headphone, which is connected in the front jack. I have plugged everything correctly. here is what it shows in sound menu:

I dont know what "Digital Audio (S/PDIF)" is , but its not headphone

Solved, installed sound driver. now speaker and headphone are displayed as one in playback menu and I can play them together at the same time. Even better than before.