Hi! I am also having the same problem with my driver. One thing you have to notice is your club head position at the impact. Try it on a slow down swing and see the club face at the impact. If you are slicing consitently then your club face will be open. To fix this you have to make sure that at back swing you take your club parrallel to the ground for as much of didtance as possible befor you lift it up and at the top of back swing you left forearm and the back of your left wrist should be parallel to the target line.

I am trying to work on it. I seems to be working. Be slow to begin with.

best of luck