I installed iOS 7 on my iPhone 4S and iPad 4 yesterday. The iPhone installation went well but I'm experiencing problems with the update on the iPad. The sign in screen and desktop screens are displayed upside down and only in Portrait mode. As a result, I need to flip the iPad 180 degrees in Portrait mode to use my apps or select items on the screen while the desktop is upside down. Some apps that operated fine in Landscape mode are now only running in Portrait mode. The former appears to be caused by some sort of bug and I'm chalking up the latter problem to the need for updates from app developers. Please excuse my unfamiliarity with Apple jargon since I'm in the process of converting from Windows to IOS and OS. Is anyone else experiencing similar problems?