If this issue was as noticeable or widespread as it appears now that hundreds of users are using them, why didn't veteran hardware reviewers pick up on it?
Hahaha! Because the veteran hardware reviewers can't be trusted! They would NEVER get a sample or early card from any manufacturer again if they said the cards had issues like flickering and what not, thus causing possibly millions in loses to the card/chip company. And without early cards and free samples, they'd be out of the review business. And magazines, forget it... they'd lose ad revenue.
Also, the cards they DO get are probably engineering samples that probably use top end components, not cheap as dirt components intended for mass production by unknown Taiwanese 3rd party manufacturer working out of a large basement!
So the last guy who posted is right, can't really trust most reviews, you gotta read forums!