I emailed them asking for a refund, because shortly after I ordered one of their units I lost two days of work due to a power outage and medical emergency and could no longer afford the gamble of waiting for their product. I explained this in my email requesting cancellation to them. They didn't answer me after a few days, so I disputed the charge with paypal. Minutes after filing my dispute I received a "Credit memo" in my email that looked sort of like my original invoice except a $6 fee was removed, bringing my refund to just slightly less than what I paid. I felt great, like I would have my money back and be okay financially. Except no money came in that day, nor over this last weekend weekend, or today. No person from Butterfly Labs ever contacted me since I began requesting a refund a week ago. I've just escalated my paypal claim for PayPal to review.

Philip

thank you for the warning

you do not need to crossfire the cards. I have read somewhere that it is undesirable to do so? do you have the full AMD software suite installed? I had installed only the display drivers and not catalyst control center, which also included the OpenCL drivers and thus initially wasn't able to mine on mine.

welcome!