I've moved your question to the InDesign forum, assuming that's what you're using. Please tell us the version, and give us more information.
Thank you Steve. It is InDesign 7.5 on a Mac running 10.9.3. It worked a couple years ago before I went to 10.9.
In-place upgrade of the OS? You can try trashing the prefs (see Replace Your Preferences ) but most likely you will need to uninstall ID and run the cleaner tool (CS Cleaner Tool for installation problems | CCM, CS6, CS5.5, CS5, CS4, CS3 ), then reinstall. You may even need to do a clean install of the OS to get Adobe programs to run properly.