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How to troubleshoot your app

First of all make sure that you are using the latest version of the app. You can find a possible new release in Updates in the Mac App Store app on your Mac or with Check for Updates... in the apps's application menu if you bought the app directly from us.

Another thing you can try is to move the app to the trash and redownload it to make sure that something in the app is not damaged.


Some problems can be caused by corrupt preferences. You can fix this deleting the old preferences.

How to delete preferences
Quit the app and open the Terminal app in /Applications/Utilities and write the following command for your app on one line and then press Enter.
App Command
Smultron 8 defaults delete com.peterborgapps.Smultron8
Smultron 7 defaults delete com.peterborgapps.Smultron7
Smultron 6 defaults delete com.peterborgapps.Smultron6
Smultron 5 defaults delete com.peterborgapps.Smultron5
Smultron 4 defaults delete com.peterborgapps.Smultron4
Smultron 3 defaults delete com.peterborgapps.Smultron
Lingon X 2 defaults delete com.peterborgapps.LingonX2
Lingon X defaults delete com.peterborgapps.LingonX
Lingon 3 defaults delete com.peterborgapps.Lingon3
Lingon 2 defaults delete com.peterborgapps.Lingon


If you can’t find a solution to your problem or just want to get in touch with us, you can email us at