hey there. this was a nightmare for us too until i decided that if i kept flicking her back, she would never learn to sleep in her new position, and that was what she had to do (she was a back sleeper who freaked out on her tummy). so i stopped flipping her, and just stayed with her with my hand on her back when she`d rolled over, and shh`d a little and reassured her and just kept my hand on her. i was amazed at how quickly she learnt it was ok to sleep in her new position...it only took a few times of doing this and one day i went in and she was asleep happily on her tummy and she now PREFERS to sleep like that. mind you, the first time was really hard, hearing her cry because she coupldn`t understand what was happening. she cried for about 20 minutes, (and i cried too!!) but i just stayed with her reassuring her and with my hand on her.