Could any one please help, i have a computer with a winfast N15235 Motherboard, it has on board sound, and the sound has stopped working, i think it maybe the drivers that have been deleted or corrupted. I cannot find the installation disc for the Motherboard, and i would like to find out what the problem is. Could any one tell me how i check if it is the drivers that are the problem, and how i can tell which sound driver i need, or any other advice. So far I have looked in Device manager, and there is an exclamation mark at the side of Microsoft kernel wave audio mixer. When i check the Microsoft kernel wave audio mixer properties i get the error message below. "Windows cannot load the device driver for this hardware. The driver may be corrupted or missing. (Code 39)" I have tried to find a new driver by clicking the update driver button, it searches the Internet, but then i get the message saying that "the wizard could not find a better match for my hardware than the software i have already" When i click the driver "details button" i get the message. "no driver files are required are have been loaded for this device" Thanks in advance.