Urgent help - loading movie

I load a game on click of a button in level1. when i click on some other button i load another swf in level10 & unload the game in level1.
when i click the game button i load it again. The problem is: when the game is loaded first time it works fine but in subsequent attempt it behaves erraticaly.
I m using time interval functions a lot of places in the code which moves the thngs on the screen.
when i load the movie again after clicking on some other button, the things start moving on its own…

please help

How could we without seeing the code you use?