I can not logon to Apple App store to download Mountain Lion. The App Store does not show an active log-on screen.
I've been trying to DL the new Mountain Lion software but when I open "Apps Store" the progam opens but the sign on window will not open to allow me to sign on. I just updated my iPhone apps and had no problem. I tried numerous things and it has become very frustrating. Could anyone help with this problem?
MacBook, Mac OS X (10.7.4)