[fnftwo] I give up

ok guys. I have been working on this for over an hour. It is a cute tut and an easy animation. But look at what pups up at the bottom on the white part: its part of the 8th frame text. The  problem is this does not appear anywhere in AS on any frame. I imported each frame in PSP to check it  and its not there but then it does appear here. If you have any idea about why and what can I do to fix this problem. You already know I am not a wizard in animation but its the first time I have such a problem. Thanks for any help Diane

Letter: Diane tutorial  art work©Suzanne Woolcott DIDOAMI