I have the same problem with CS4.
I followed the advice of Joseph, but it did not work for me.
However, I saved the file he suggested removing to the desktop before deleting it. Thus, I could return the file to its proper location, leaving me no worse off than I was before. My reason for joining and posting to this forum was to share this advice. Any time you are advised to delete a file to fix any problem, not just Adobe and/or Premiere issues SAVE THE FILE!