From Project Screen to Full Screen-Timing

I am running MM12, Windows 7.

When I am creating a movie on the project page, I have the music and photos set up perfectly in sync, as I would like them. However, if I go to view it Full Screen, the timing is off. I have to go back into the project page and "guess" what the timing will be when viewing full screen, because when I save the Movie, it always saves in the version of what the full screen displays.

Also, after viewing in full screen while creating, my Animations disappear and I have to close the entire program and reopen for the Animations to reappear to continue working on my project. This has become very frustrating, because it takes me double, even triple the time to create my movies than it should.

I have tried repairing Microsoft Essentials, but that did not fix anything.

Thank you for any suggestions you may have and your attention to this issue !

Leilani :)