hi guys im a newbie at this been mining for a week now and found the Hash rate varying from 320mh to 475mh .... avg 390 to 409 mh a day 2.7% to 0.7% rejected avg is this normal?
i have a KNC Titan batch 2 
   can anyone tell me if  i need to  setup a manual difficulty and if so what should it be for clevermining ?? d=???
thanks