DVD Maker

I recently made a slideshow of pictures, music, etc. with the DVD Maker and
saved it. When I went to open it today, an error message came up that said:

The foreground video file is not accessible. The setting has been cleared.

When I click okay, the title of the file is there, but not a single picture
is listed. Is this an option setting I can change, or not? If so, how do I do
that? If not, can anyone tell me what's wrong?

Would really appreciate any advice/feedback anyone may have.

Thank you!

Lauren