I installed the SP1 the other day and large airports have transparent runways. Princess Juliana, San Francisco, Sacramento, and Area 51's runways that let the ground beneath them show through. Is there a fix for this? :-?
Also, I have a real crap system, and I only run about 7 FPS In the middle of the ocean. So, I didn't really see the advertised 20-50% increase in performance. Does SP2 help that?