usernamedont, try this one:
update driver > yes, this time only > install from a list or specific location > don't search. i will choose the driver to install > sound, video and game controllers > MS UAA Bus Driver for High Definition Audio
If you don't see it, I think you should google "MS UAA Bus Driver for High Definition Audio" and download it.
I remember I did something with this "MS UAA Bus Driver for High Definition Audio", either downloaded it or found it in the winXP setup CD and installed it.
about your DVD, I am not sure how to detect whether it's a hardware error.
yes, i agree, deaf-mute laptop is not fun.
