ASSALAM-O-ALAIKUM m having problem related to windows 7 i installed windows its too cool but the problem is that my system audio is not working also i have acer extensa 6700z note book when i tried to install software from resource cd an error occurs that this driver is only for xp,2000 and vista also m unable to find the particular driver on net same problem.what should i do i really like the window plz reply me i wll be thankful