I didn't read all 4 pages of this topic, but when I first got my Arcade Card Pro I thought it was defective as well.  Turned out to be my PCE converter.  The seller was willing to take the card back and everything, but I cut a trace on the converter and suddenly it worked perfectly.  That's a true story.  I told the seller to f-off and that he could keep my money because I was keeping this damn Arcade Card Pro because it was awesome.  Then I gave him a whole bunch of negative feedback for trying to take my awesome Arcade Card Pro away from me.  I had eBay ban him as well.  That part's not so true.