Looping swf

i have a swf file that as far as i can tell is not set to loop or anything, but when i call this swf from my main swf using

_root.top.loadMovie(“top.swf”);

it will not stop looping and its driving me mad, my main swf is not set to loop either as far as i can tell

does anyone have any ideas where to look and what i may have missed

thanks in advance