I searched until I found the fix for this issue, which others are having a lot of issues with, including changing every possible computer setting other than the Games video settings.

The issue is on non-native aircraft, getting white-out screens in various views, sometimes it will dissapear and come back, sometimes it will not, VERY annoying to say the least.

The fix, VERY easy.  Graphics settings, Turn OFF Light-Bloom.  Done, Finite.

No, you do not need to change FSX CPU priority, lower video settings lower, change resolutions or anything else, just uncheck that ONE box.

Note that there is also another issue with the cockpit tool-tips causing this as well, so uncheck both if you still have issues after doing the above.

Good Luck and Happy Flying!