Absolutely.  Simply remove the product, and though you don't have to I would re-download the product.  Then run the ASUpdater and ensure that Experimental Updates is not selected and run the update.   I have no way of knowing for sure if 1.2.1.1 is now the default Standard update, but it should be.   I've sent this post to the person how handles the updater, so I'm hoping he will chime in and correct me if I'm wrong.   Best wishes.