Hey i've got this problem with the default scenery on FS2004. When changing views from inside the plane to outside or visa versa, white squared appear on the terrain below and take a significent ammount of time to disappear. You can still see the terrain through these white squares but they are rather annoying. This has only just started happenning to me. Ive read posts about white blocks on expansion scenery, but not on the default terrain, any advice would be helpful.