Yet again I'm afraid I'me looking for some help, please! This problem has bugged me for a long time know and I'm not sure when it started. Basically, as soon as the subject aircraft is off the ground the terrain around the subject (either flying or AI, the same happens to both) colours a shade lighter than the rest of the terrain, and this effect keeps pace under the aircraft as I move across the terrain, with new blocks shading as I pass, always keeping the same grid area underneath me. It only stops when either I go very high, or am on the ground.
I can't think when this started though, I do have both Ground and Flight enviroment installed but have uninstalled both at various times with no change. I did think it was normal with FS9 and I'd just never noticed it before but I see screenies from many others without the problem - has anybody got any ideas, please?
Here's a couple of shots to give you the idea, one taken while on 'spot' mode - can you see the edge of the area above the Tornado's fuselage, just down the approach from Marham's runway.

The other is taken from the overhead view and shows the whole plan of the lighter grid below me. I've done a good search on the web and can't find any mention of it.

Gary