Ok, I have followed the suggested fix of turning off render to texture. I can not seem to find any visual difference between it being on or off so can someone tell me what I'm missing? I'm running a GeForce FX 5800 Ultra with the latest drivers.

I guess you're using the FSW framerate friendly cloud textures - don't. I had the same problem, and went to the ordinary FSW 32bit textures instead. Then the 2D panel flickering stopped.BrSteen

Hi,Yes when using render to texture off and FSW clouds, you must use the 32-bit cloud set (documented).Render to texture (when on) makes your 2D panel an actual 3D textured object instead of overlaying a 2D window on top of the 3D visual world window.This doesn't do anything positive (for most video cards), and only slows down frame rates as the additional rendering of the panel texture seems to take quite a bit of overhead. It also causes a flicker anytime either a 2D window draw is made (over the 3D panel/world view) or a change to the 3D world is made (i.e. a cloud or visibility change).Hope that helps!Damian ClarkHiFi Simulation SoftwareDeveloper of ActiveSkyhttp://www.hifisim.comhttp://www.hifisim.com/images/as2004betateam.jpg