when i start SL on my prescott machine with radeon 9200 (RV280) i get a black screen, then if i resize the window by just a small fraction i get the program to display correctly (otherwise i can just sit there for a long time and still only see the black screen).
--edit--
just thought i'd add that i'm using the xorg driver for the radeon,
not the proprietary.
also, other than the startup it works great!
alot smoother than on my laptop with the intel video
