Be grateful that you are not experiencing channel swappings as well (or maybe you just did not notice them).
There are still some issues with audio playback on the sansa right now. Seems like the Sansa users like ourselves will have to be patient.
By the way, I think you posted this is the wrong forum since this one is for installation issues only (and it seems you already completed installation). The forum guidelines are somewhat weird, seems like you are not the first one to be confused (sorry, this is just my opinion

).