Ok so I'm trying to install Studio 5 Pro on both my Macs.. I have it up and working wonderfully on my PC... When I tried to install it on my Mac Mini it would not activate. It ended up installing S5A on that Mac Mini... How do I install 5 Pro. I deleted all the download attempts restarted and tried again. I still loaded Artist when I clicked on the Studio 5 Pro Install link. Again In have Sphere.. I love it and want to use it on the Mac Mini - Macbook pro - PC. I do not use them all at the same time. Again, the PC is working fine.. it's the Mac Mini that would not activate Studio 5 Pro. The product license said it was activated but I could never get 5 Pro to load past the activation screen. HELP!!