Encore CS6 can't open project

I created a project, saved it, output the DVD and quit. No issues or freezes. Now, when I try to open the project I get this message:

Cannot open project. The folder for this project cannot be found.

All of the content and folder hierarchies are exactly as Encore saved them but no dice. I have no option but to completely redo the project from scratch.

Any suggestions?

Thanks,

-TY