A version of the OIV for Mac OS X 10.7 Lion is now available for download through the ARTstor Digital Library. To download this file, log into the ARTstor Digital Library using your ARTstor registered user account. In the ARTstor navigation bar at the top of the screen, click Tools > Download offline presentation tool (OIV). Select the radio button next to “OIV 3.1.2 for Mac (Java 6.x; Mac OSX 10.7),” and the download will commence.