restoring background movie

[Connacht]

The questions are basically two:

1) suddenly the background movie (dump0000) about a week ago ceased to work anymore on vanilla Rome, and on the menu I only see the loading screen with the hoplites in guard mode.
I do not know why this.
I am sure that I didn't touch any program file and I don't really know why now I can't see the animation. Or at least I didn't notice any changement. So I am asking where should I see to control if that animation is "active" or "disabled" or whaterver, I didn't find a "toggle menu animation" option in the preferences or a file in the Data directory.
Also the intro video doesn't start.

2) I also want to put that animation into EB, since I really like it. So yesterday I first copied the dump0000 file into the Menu directory of EB, then I edited the Rome.lnt file and I added the <fmv> string of the original file.
But I don't know if these steps are all that I should do or I must do something else, or even if these steps aren't needed and I must do other things. So I'm asking for some advices.

Besides, with the problem 1 of above, I also can't verify if I'm doing well since the animation simply doesn't start in every version of Rome I have (vanilla, BI, EB).