GeForce 250 - suggested settings?

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I haven't touched the graphics options of my G250 and run the game as installed. Having read so much info on this site and M4 concerning the various improvements (and how they affect frame rate) I wonder if anyone with a G250 (512 Mb) could tell me what settings they use to get the best out of IL2. My framerates are very high so I guess I could make some adjustments. I have a 2.9GHz Dual Core MB with 4Gb of ram and currently run the game at the default resolution of 1024 x 768, video 'Excellent' using OpenGL.