There is a rumor that the developer is not more in the thema. Also he has a big quantity in his wallet that hasn't move for a long time... you should think in make a swap of miner or soon will not be able to mine ETH... Now you cannot ETC and in a pair of weeks eth too... have a look to lolMiner for example, great for both Nvidia and AMD, more in AMD but also works perfectly in mix Rigs