Are you using Chrome? You might have conflicting flash plugins which are causing issues...
Type "chrome://plugins" into your browser bar, click 'details' on the top right of the page and find the adobe flash player section (usually first). If you have two files; try disabling the one with the file path in the Chrome app.
Finally, if none of that works, try deleting the following folder: ~/Library/Preferences/Macromedia folder
Are you using Chrome? You might have conflicting flash plugins which are causing issues...
Type "chrome://plugins" into your browser bar, click 'details' on the top right of the page and find the adobe flash player section (usually first). If you have two files; try disabling the one with the file path in the Chrome app.
Finally, if none of that works, try deleting the following folder: ~/Library/Preferences/Macromedia folder