I launch MacJournal and I get an error message saying the "File is Busy." What do I do?
Go into your MacJournal Document and remove the file inside the document package.
Quit MacJournal. Navigate in the Finder to your default file. It's located in your home user folder's:
Library/Application Support/MacJournal folder
Look for the file named 'MacJournal Data(.mjdoc)'. Right (or Control)-click on the data file until the menu comes up and you can select "Show Package contents". You'll see an item in this folder called 'Document.lock'. Move that file to the trash.
Close this folder's window and launch MacJournal again.