Help:flash expanding with div

1

i have a flash movie inside a div whose width is set at 40%(the div, not the flash movie), and when the flash movie changes size(from the browser window size changing), i want the div to expand horizontally and vertically along with it. The problem is that it wont expand vertically(or shrink for that matter). it will grow and shrink horizontally but stays at a fixed height(that i didnt set). What am i doing wrong? The flash movie is set to 100% and to “exact fit.”