RE: NEED HELP
In my case I have the cheap string that came with the bow and it twists. There is a guy on here that sells strings and they are supposed to be the best. Replace the string then while you're at it get a new peep. That should fix it.
I personally don't like that solution either so I'm waiting till next year and I'll get a new string and peep so I am practicing with the same setup come hunting season. I'd hate to change half way through.