1. Press Ctrl+Alt+Down Arrow (Which ever arrow is needed to get the screen back to the correct view)
To Orientate you screen you can use the following key combinations.
- Ctrl+Alt+↓ - Flip the screen upside down.
- Ctrl+Alt+→ - Rotate the screen 90° to the right.
- Ctrl+Alt+← - Rotate the screen 90° to the left.
- Ctrl+Alt+↑ - Return the screen to the standard landscape orientation.