HP/Compaq :: IDT HD Audio Update

I installed the update for IDT HD Audio (it prompted me to in windows update) and I have been disappointed.

My most important problem: The audio sounds fine though the built-in speakers, however the sound though my headphones (provided by the Independent Dual Headphones profile) is inexcusably quiet. At max volume, it is only at comfortable listening levels.On the other hand, I am glad that it finally switches profiles automatically when I plug in a device via mini-jack.The second issue is the "SRS Premium" feature not working properly: I bought my laptop before they started doing that whole thing, so mine does not have an SRS badge by the speakers like others I have seen, but the update gave me the feature so I just expected that it would work. Thing is, the sliders are all messed up, I can't get it to stay at the percentage that I set it at (screen/app refreshes reset the sliders back to 0%). And even at that, if I manage to get a slider up to 80% whatever, it makes no difference in sound. I tried changing songs in case it wasn't real-time updating but that didn't work either.