I've been getting the dreaded "No Audio Output Device is Installed" message, and have no sound. I have been lead down a path to download a new Microsoft UAA Bus Driver. My problem is, how can I find the right one for my computer? There are so many out there, how will I know? I've got a HP Dv2500 series laptop and am running Vista 32 bit. This has been going on for three months, so any help is beyond appreciated. Sorry for the lack of detail, I'm a newb. Thanks folks!