I am using LR5 and it has been working for me pretty well but today I may have accidentally clicked on something that resulted in the loss of those Development panels. Only the Histogram shows. I wish to restore all the missing panels. I was too afraid to check on various things in the Toolbar (such as Settings, View, etc) and at any rate now the Toolbar has also disappeared. In short, I cannot do any post processing of my RAW files.
I am using an Intel Mac OS X 10.7. Any help would be much appreciated.