violet worm this happened to me, u just copied one code in page 7 and didnt notice that that code didnt notice it was just the part between bracts and you took everything and pasted that code leading to your background not moving
i had the same problem but instead of that i just copy pasted and in the first action line it had ship with capital s and i wrote the movie clip as ship with small s.( got so anoyed
) i tried this 3 times and didnt work cos of that !!!!!!