Yep, that's what I did. Not sure why this doesn't work for all. I really see a difference when wxRE is running and there are clouds up to about 58 broken. After that, the overcast slowdown kicks in. I'm not getting anything like a 50% increase, but easily am getting 4-8fps higher across the board.I locked at 25fps so that I can kick the scenery and autogen density to max. I already had terrain at 100% and almost everything else maxed except mip-mapping at 4 and local textures at high, instead of maxed. I run traffic at 56% because I find this still to be the biggest drain on performance, next to overcast.Sorry this didn't work for you...:( Best,