I am in the process of building myself a mid range gaming pc. I have already decided on getting the GTX 970 for the graphics as it seems like a powerful card and it is right in my price range. I was almost going to buy it but I was reading the reviews and it seems that many people have experienced crashing with this Graphics card. Is this something that happens often? If I get one that crashes, if I sent it back and got a new one, would the new one fix the problems?