You could try disabling AGP Texture Acceleration from within dxdiag. That has helped on some mobo's. Or else just zoom out some more, then you can't see it..!
BTW the same trick works within the cockpit environment. Want bluer sky with the default 2d cockpits? Zoom the outside view to 0.50. Presto!
Want a smoother scrolling banked turn..? Zoom the outside view to 0.50. Smooooooth.
Conversely, want a better, more realistic landing view on final approach..? Zoom to 2.00x. ScaryReal.
So here's what I do:
Takeoff at 1x zoom, per normal. When retracting flaps at about 1,000 AGL, hit F5 for the flaps as normal, backspace to restore zoom focus, `-` (minus) key to set 0.50 zoom.
Fly like that, remembering to alter it back if it gets re-set by changing views or whatever.
When setting approach configuration (first stage flaps, power reduction or circuit height) I let the zoom return to 1.0x and leave it there (it's the default, so it stays there to avoid confusing the `picture` when switching views.
As the aircraft goes to Finals, at full flap I zoom to 2x and leave it there until rollout.
To my feeble mind, the actual `realistic` settings would be closer to 0.68 than 0.50, 1.75 than 2x, but I have yet to find a way to set those with single key presses and I can't be doing with all that faffing with Shift+plusses and minusses when I'm busy..!
Pete, is that perhaps something that FSUIPC could hotkey, zoom presets..?
Another related tip is to turn DOWN the texture detail when you turn UP the autogen or scenery settings. It not only slows the texture re-writes, it also helps to preserve your focus on the 3d buildings and trees, rather than the 2d ground txture. Try it, it appears more realistic and believable!
Simon Evans