After reading a lot of these posts I no understand why people still buy the r290 cards and even worst is that so many people recommend them...
Granted its a small sample - 4 out of the 9-10 people I know IRL who have bought a 290 have had to RMA their card due to the blackscreen and redscreen issues. But the 2 that had a replacement rather than a refund have had absolutely no problems with the replacement cards that I'm aware of the other 2 swapped to 780/780tis instead rather than mess about. From reading about on these and other forums though it doesn't seem an unusual story with these cards - for the most part people haven't had a problem with replacement cards though.