iDVD "Error during rendering/encoding of the menus/slideshows" for new slid

Please Help!

I have never needed to use iDVD'08 vers7.0.2 before. Today, for the first time I tried to create a DVD of three wedding picture slideshows on one DVD.

I created the project without a problem using the "Revelution" theme but when it came to burning the DVD i repeatedly get the error:

*+"Error during rendering/encoding of the menus/slideshows - There was an error during rendering/encoding of the menus/slideshows. The burning process has been canceled."+*

This seems to happen at the end of rendering the main menu. I have already tried taking out one of the slideshows incase there was too much data and trying to render it as a disk image instead of direct to DVD but I still get this error every single time.

Please tell me what I am doing wrong!

Thanks in Advance - Cyrus