I have some sound problems (garbled sound and no sound playing discs) and the diagnostic finds I have an "unidentified audio device on high definition audio buss location 65535" with no driver.   I have been unable to find how to reinstall.  I've tried to run the OEM driver CD but no change.  The "reinstall" fails to find the driver.    Dell 1525, XPSP3,

Can someone direct me as to how to find and install the correct driver?

Thanks,  aquaries