Thank you for replying! Well I do know what the icon looks like as it’s on my Windows toolbar right now and I had it (17) running on this desktop earlier today. When I download DaV 19 or 20 to the Mac Mini I get the installer, run it, get a success window, and an icon on the dock. I punch it and it ask me to run the installer again. I’m beginning to think I missed something on the initial set up, or, as a few others have suggested, either my new Mini or the downloads of Resolve are corrupted somehow. Other factory loaded programs on the Mini dock open normally. Going to keep trying and maybe even go for a Black Friday deal on Adobe stuff, which I have always avoided, but I do need to get this Mac mini up and running for editing on something soon. Thanks to all for any ideas.