[quote author=asanal link=1328095285/0#9 date=1329183474]I would like to try again download GSX demo, but I am hesitating if GTX makes some changes in FSX cfg.file and hits the FPS. MY first experience was not good. I wasn't able activate any of GTX activates. :-[/quote]

I haven't found any FPS hit with GSX. To test it I parked my B767-300 at gate D22 FSDT KJFK. I did turn down the airport traffic as I noticed that GSX trucks would drive through the default FSX trucks. I am pushing 11.0 frames without a high end graphics card. (NVIDA 280) with liquid cooled processor quad core I think. The only drop in frames was entering the runway for departure. BTW I did notice that GSX runs better with Preview Direct X activated.