New computer, new problems

hi there, i’ve just gotten a new computer, but i opted to stick with the windows xp operating system rather than go to vista for right now. the problem that i’m having is that many of the (flash) websites that i’ve designed are coming through with a white background color rather than the color they are supposed to be. i’ve upgraded both i.e. and firefox and deleted all of my cookies but this is still happening. the problem is not happening in files where i have a vector image as the background but only in ones where i’ve set the background color in flash.

here’s an example…click here…the background is supposed to be a brownish beigey color but now it’s coming through as white. any ideas what my problem is? (and for mac enthusiasts, i know you’ll tell me to get a mac :wink:

thanks in advance,