Double-click on the Finder’s desktop icon for your startup drive, press “Cmd-N,” or open the “File” menu and choose “New Finder Window.” The Finder displays the contents of your drive. Double-click on the “Library” folder to open it, scroll to the “Preferences” folder and double-click on it to open it. Click on each of the following files and press “Cmd-Delete” to move them to the Trash: com.adobe.acrobat.pdfviewer.plist com.adobePDFSettings.plist Press “Cmd-PgUp” to navigate back up to the Library folder. Locate the “Users” folder and double-click on it to open it. Find the folder that displays your username and double-click it. Locate the “Preferences” folder within your user folder. Select and delete the following files: com.adobe.Acrobat.Pro.plist com.adobe.Acrobat.Pro_ppc_8.0.plist com.adobe.Acrobat.80.sh.plist After you delete its preferences, Acrobat rebuilds them the next time you launch the application. Take the time to reset your preferences after you delete them. Writer Bio
