I'll give it a shot. Won't reinstall my operating system though because that is quite the pain. I'll tinker around though with the settings and see what I can do.
EDIT: Directions unclear, set my computer on fire.
So I redownloaded, reinstalled, dicked around with the in-game options and I'm still left wanting in regards to the textures. The base game doesn't have the problem, but it seems to be only with PR (I'll hit up Thrawn's Revenge to confirm) that the textures seem to show no improvement between low and high settings.