The cards on my board are missing?

[Diane Fudge]

I can see all my boards.  When I go to the main board I use everyday, it is totally empty.  Can anyone say why?  How can I recover?  I can find my cards under "View Member's Board Activity" and all of my "work" comes out in a list, but my boards are blank.  What can I do to get back the screen with a board and all the associated cards?