1. Quit MacJournal
2. Open Terminal
3. Type
defaults delete com.DanSchimpf.MacJournal StoragePathAlias
and hit Return4. Type
defaults write com.DanSchimpf.MacJournal "Storage Directory" "~/Desktop"
and hit return5. Open MacJournal
Replace the "~/Desktop" with wherever you want your data to be saved. When you open MacJournal again, that's where it will look for its data.