i have not witnesd [spelling ^^] this, maybe it your PC?
Turn your Graphics up and it'll most likely resolve the problem.
Automatic Draw Distance Adjustment.Turn it off.
Ive noticed this too. On one of my builds, I have player scale American flags. At different distances and angles away, the flag appears either completely white or completely red. But it doesn't really bother me...
That is how stripes work when you have a limited number of pixels.
lol'd at badspot's double toast...may be you dont need to buy another card, try updating the one you have.
What's a double toast?