I wouldn't mind exchanging cards but the HIS card isn't even in stock.. I'd be waiting a month to get a card back.
I tried calling NCIX but was sent to voicemail...
I swear this is the last time I buy an ATI card
That sucks man. I was pretty much in your shoes except I was going to back to Nvidia to buy the gtx280. Start with the basic stuff to trouble shoot your issues, like making sure the power connectors to your video card are tight and not loose. Also make sure that dvi connector to your vid card is secured properly. Might as well check the power connector to your motherboard, etc. while your in there. Are you using an 8 pin adapter by chance? If you can return the card and get a full refund do it. Just tell them it is defective which it obviously is and I'm sure you'll get a full refund since it hasn't been 30 days. They don't open until 930am PST I believe. Your obviously not happy with that card, or the 4870x2 in general, might as well return it while you can.