preloader_transition

hi all, i followed the tutorial, done everything the same, but when i uploaded my .swfs, it loads the main scene, but when i click on a button, the “doors” close, then open straight away and do not “preload” or load the file, then after about 1 min they open and are not preloaded?
Does neone know how to fix this problem? I have been over and over the code but everything seems to be right.
Someone plz help

Thanx
Jaymie Jones

Hard to guess whats going on… :-
Care to post the fla?