Hi, I actually wanted to reply to this thread : http://forum.bitcoin.org/index.php?topic=26224.60
to say that I have also had a coin disappear at Mybitcoin, but as I don't post on the forum much, I'm limited to the newbie section (if someone could move or quote this over there that would be good). I pulled all my coins out of mybitcoin when I noticed the missing coin, but I still have access to my account, and I correctly received mining payouts both before and after the missing coin (I didn't catch it immediately). The coin shows up in the block explorer here: http://blockexplorer.com/address/1HgDuxLfG3E4kkN5VkToxeFPDN2aWBTjPz
. It's easy to spot as it's the 1.01 coin one as opposed to an even 1.00. So, I know that the pool payed out on time to the correct address, but my mybitcoin account balance did not increase. I can't really prove it to the general public, but there is no record of the coin ever arriving at mybitcoin, so it's not a case of my account being compromised by a third party. That should be easily verifiable by someone at mybitcoin. I've sent two support tickets using the messaging system in Mybitcoin with the latter containing all of the information above. It should be an open and shut case, but I have not gotten any response, and it's been almost 2 weeks since the coin should have arrived and about a week since I messaged support.
Has anyone else had problems with coins disappearing at Mybitcoin or any luck actually getting support?