I AM A BEGINNER, I WANT TO MAKE A HAT. THE PATTERN SAYS K4, P4 AND KNIT THE KNIT AND PURL THE PURL ON ROW 2. I GET THAT!!! BUT WHEN I TRY TO SWITCH FROM KNIT TO PURL I GET THIS CURLED UP GARBLEY MESS! I CAN NOT SEE A RIB EVEN START TO FORM!! help ANY BODY BIDDY05