please help

My laptop was all fine a week ago. However, today when I tried to watch a video on-line, it did not have any sound. I checked the settings-control panel-sound-volume, it says "no audio device". What’s wrong with my computer? Can someone help me?
Thanks a million!

所有跟帖： 

• 重新装一下声卡的驱动程序。 -墨斗鱼- ♀ (0 bytes) () 12/05/2008 postreply 07:44:58