I am new to Mac. two weeks ago Adobe upgraded my Windows version of 'Photoshop Elements 13' to Mac version and gave me a new serial number. I installed the software and got a message 'Installation Complete'. When I click 'Launch Now' I am told to sign in, when I try I am told I am not connected to the Internet when I am connected. Elements Organiser will run, the first time it does it gives me a messge 'Adode Sign-In disabled in Elements. Elements Editor will Not. Can anyone help me undisable Sign-In problem. Please.