Hey Zane, thanks for the answer. Unluckily, it did not help. I deleted the Spotlight .plist file and restarted my Mac, but in the Spotlight preferences I could still see my old settings! Where did OS X get the previous settings from? I made sure the .plist file was deleted (not only trashed), and the creation date and time of the new .plist file was when OS X booted again. Do you have any other advice?