My colleagues and I have been using Sli.do for PowerPoint for the last 14 months. Today, my colleague received a new computer and tried reinstalling the Sli.do app but received an error message. I have Sli.do still working on my PC using version v0.18.2.1721. My colleague is trying to install v0.21.0.2123. We’re not sure why Sli.do is not installing for him. Is there a means to access and download an earlier version?