There was a hard fork at block 44,500 April 8th 2014. Please ensure you are using the latest wallet.
That was in April, the shit hit the fan in May. That doesn't explain the fake miners that you had posted, nor does it explain why you were still accepting new miners and not making payouts as recently as May 22nd.
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Sorry guys, I know this is all a bit off topic. Let's get back to wanking
