Your comments

for ccminer?  


(obviously I have filled in the ADDRESS field)


  {
     "max-log-rate" : 30,
     "quiet" : false,
     "debug" : false,
     "protocol" : false,
     "cpu-priority" : 3,
     "algo" : "lyra2v2",
     "url" : "stratum+tcp://mona.poolmining.org:3092",
     "user" : "ADDRESS",
     "pass" : "d=8"
   }


Yup all stock. The error mentions CPU so could it be something with that rather than GPU?

Yeah, I think installed Cuda8.0 right before this. Are you talking about NVIDIA drivers? I installed those when I first got the card. It works fine mining Ethereum BTW.