Nope, none of that. Changing color doesn't make it show up, either. Just moving the actual box around... I can drag it, nudge, it send it forward or backward... any movement applied to the text box makes the text inside appear.
I'm not sure what you mean by "what is it saying." It's just the text that's supposed to be in the box, the text I know is supposed to be there, but is invisible. Any text on the master page, which shows up on the master page itself, but not in the document when I apply the master page.
If you don't know about this one, I'm guessing it's a pretty unusual problem.