Project available in preview is not what is burned to DVD...

[Kim_OK]

I've edited and saved a project I've been working on for a while. My original project is still the one that is burned to DVD and I can not figure out how to get the new/changed & saved project to burn. Anyone have any ideas? I'm running MF3. The new project is saved and comes across fine in the preview pane but when I go to burn, it is burning my original version. Thank you.