how far do you hit it? you could be releasing too early it you hook a lot. need more info to help. i would guess to maybe weaken your grip a bit and follow through down your target line and let your body swing the club around. try you swing your club down the targer line and not around it, your body will turn it around for you.

if you are releasing too early, then your distance probly isn't too good eaither so i reccomend you visit this site to help with a later release.

http://members.cox.net/gregjwillis/LESSON1.htm