Mail is propagating blank, non-functioning letters whenever I open it and when I just click on Mail to bring it forward. These cannot be closed, nor can they be written in. It will accumulate these useless blanks endlessly, one after the other, until I quit Mail. I updated my OS today to Golden Gate, hoping that would fix the problem, but it did not. Any ideas?
Screenshot shows two of these, just multiplying every time I look at Mail! They can be minimized but not closed.