Buttons behaving mysteriously

[FONT=Arial]so, here’s the thing: i have a page consisting of a swf file (which serves as interface) into what is loaded another swf. on top of the page are the buttons for the main menu (which seem to work just fine) and under them, on the left, three rows of buttons for viewing different projects. the problem is, that having these project buttons up there is like lottery: sometimes, when going to the page, they are all there, sometimes there are only three or four, sometimes none. they all reappear after refreshing the page though. (you can take a look at the pages in question on [COLOR=#800080]http://www.jppd.fr/french/online/sjdllFR.html[/COLOR] navigating between different projects). although i’m not quite sure, it seems that this problem is caused by the fact that in the first frame of this so called interface movie is a command: [/FONT]
[FONT=Arial]loadMovie(“namemovFR.swf”, “_root.targetMC”);[/FONT]
[FONT=Arial]gotoAndStop(96);[/FONT]
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[FONT=Arial]notably this gotoAndStop part seems to be difficult to handle when i test movie, simulate download.[/FONT]
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[FONT=Arial]since i’m new to both flash and the whole web thing, i’m desperate for any advice.[/FONT]
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[FONT=Arial]thank you in advance[/FONT]