Can anyone help? I turn on my computer and the sound works fine for about 30 second. Then all of the sudden all i get is a constant buzz, there no music or coherent sound behind the buzz just a buzz. I checked it against my headphones and the same sound is in the head phones. My speakers work fine on other computers and my ipod. i have deleted the drivers and reinstalled them, i also have updated the drivers, I have had all the old registry cleaned out. i have taken out the old sound card and unistalled it and put in a new one. I don't know what else i can do to fix this problem. please if anyone can help me out that would be great! thanks