When I tried to open the Adobe apps, instead of the normal list of items I got a sign-in screen. I entered my ID and password, but got an error message. I tried to use the app (Photoshop CC Bridge, for example) on my second computer, and it worked fine. I was able to sign in and reach this screen on this computer, no problem. But I still can't use Photoshop or the other apps on this machine. I am connected to the net, and can reach other sites with no problem.