TOC - Receiving a "Cannot find the file named" error when pressing Ctrl+alt

When I generate a TOC, it comes out beautifully. However, when I press control + alt to check my links, I receive a "cannot find the file named" error message. This happens for the majority of the links. All of the files are present along with the graphics. Everything is in the same folder. They are saved on our network. However, I have packaged and copied the files to my desktop to see if that makes a difference. I am still receiving the same error message.

Has anyone seen this before? Any solutions in Adobe world? All help is appreciated.

Salome