Thanks a lot my friend. Yes, it is the second time that the buyer immediately cancels the order without explanation. That way, the listing goes down, and all viewers see that it isn't available anymore... I had read about tricks in auctions in order to damage either the sellers or other potential buyers, so that could be either a coincidence, or one of these ebay tricks... I don't like ebay at all, this is why I prefer exchanging it with another proto, or offering to the community at a lower price...