i am using fedora 5 on my laptop and the model no is Toshiba L10-273. i have been trying to play video online such as video.google.com and youtube.com, i can see the videos but can not hear the sound at all. i check the sound card and its working as the sound test was ok. i checked the sound levels as well they are all up at the highest level, but still no luck can any one help please? thanks.