http://i19.photobucket.com/albums/b181/Cap...7-sep-8-009.jpghttp://i19.photobucket.com/albums/b181/Cap...7-sep-8-007.jpgI think the problem is quite clear. This is a recent problem, or I've never really noticed this before (I was more of a low'n slow type flyer).In this testcase, I disabled all weather and traffic and flew the PMDG 737 around at FL350. I also use Activesky 6.5 and Real Environment Pro. The framerates stayed dutifully around their limit of 26fps. What can explain this and how can I cure it? I don't mind a bit of blurryness in the distance but this is too much.

Hi,Do you have Extended Terrain Textures checked in the FS9 display settings?Have you changed your video card driver recently?Regards,Martin.