We want to help you

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 9 defaults delete com.peterborgapps.Smultron9
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 4 defaults delete com.peterborgapps.LingonX4
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

How do I uninstall an app?

You can uninstall our apps with a few easy steps:

  1. Drag the app to the trash
  2. (Optionally) Delete the preferences by following the guide under Preferences above

If you want to uninstall any Lingon X and has authenticated once, you can also delete any files beginning with "com.peterborgapps.LingonX" in two folders: /Library/LaunchDaemons and /Library/PrivilegedHelperTools

If you want to uninstall Lingon X 4 and has the agent running, which is the default setting, you can stop the agent by either opening Preferences in Lingon X and uncheck the "Agent: Run" box or just quit the LingonX4Agent process in Activity Monitor after you have emptied the trash after following the uninstall process above (or just restart your Mac).