On the site I am working on, we are using Gravity Forms version 1.6.9. They have a registration form in which they want the user to have the option to select multiple dates (products) to register for. When I add a Product, and go to change the Field Type, there is no option for Multiple Choice. The only options available are: Single Product, Drop Down, Radio Buttons, User Defined Price, Hidden, and Calculation. Am I using the wrong version of Wordpress? Or would this be fixed by a fresh install of Gravity Forms?