In some situations it is necessary to refresh, reload or clear the cache in the Codec Viewer. For example, this is recommended after a firmware upgrade. If Toolbox appears unresponsive:

  1. Click Refresh
  2. If it is still unresponsive click Reload
  3. Finally, if it is still unresponsive, in the Menu Bar select Tools > Options and then select General > Web Cache and click Clear to clear the web cache.