Could someone please tell me how to go about upgrading to v9.1.9.6. I have downloaded this version saved to Finder but get the message that says the download is from an unidentified source. I have then been given a message in a box which says find in fine, press control key and app and use open option and this will save as an exception. I have tried this, not sure if I am using the right sequence but no luck with the update. Help please. Simple terms not that great on the computer. Thanks