I have an HP running XP SP3. I downloaded the audio driver, but it would not load. It said I needed to download Microsoft UUA Bus Driver for High Definition Audio, So I downloaded that from the HP site and ran it, but when I try to load the audio driver after running the UUA, the error message is still the same. It says I need to load the UUA. I have read some threads about needed to point to "hdaubus.sys", but I never receive anything saying it cannot find that file. Any ideas?