hi
address the ball as you normally do and swing back to about hip high then move your body like you do when swing back down into impact and swing your club back to the ball so now your hips will be more facing towards the target than when at address and check where the face of the club if now looking. if its open then use your right hand to turn the shaft but not move your left hand, then address the ball again and your club will feel like its closed and again do the drill and check you club face.
if its OK then take a full swing and see how the ball flies,
your hand may be in a good set up at address but could have the wrist turning a little at impact.
give it a try and see how you get on.
cheers
bill

__________________
ping zing2 metal driver
ping zing2 metal 3 wood
ping eye2 1 iron
ping zing2 3/9 irons
ping ist 47% wedge
ping zing2 52% s/wedge
ping mb 56% wedge
ping c10 G2I broom handled putter
top flight "T" golf balls
white ping bag