Imported file blocks preloader

I got a preloader (the one by kirupa’s tut) and put it in frame one of my movie, tested it and it works great!

Now i got the background of my site which i would like to be visible while preloading, its a 28K jpg file. The problem is that from the moment i put something which i imported (wether its a gif, jpg, wav or png doesn’t matter) into frame 1 the preloader simply doesnt appear and jumps to frame 2 after preloading is done.

Can anyone help me out with this problem? Symbols created in flash don’t block the preloader so i guess its got something to do with the imported objects in frame 1.

I already tried converting it to a symbol, include it in the preloader MC, nothing works :frowning: