Some PCs mandate we install MSUAA after the motherboard drivers but before the audio drivers or no sound for you. Since I see so little detail I'm going to share the most common XP install goof I encounter.
A link will follow for a specific PC that I use as an example.
You bring up a good point. Do you think that a decade later that this issue should have been fixed?
Read the link after.
Says no active mixers avialble when i have line 6 tone port ux1 driver installed. i cannot hear sound how do fix this.
Eveything looks like this