If a cross section/elevation view that has been sent to layout and you choose to delete it, the link between the layout and plan will be broken.
This message displays when you do not have a video card driver provided by the manufacturer, often described as an installed client driver.
3D views such as elevation views cannot be rotated on a layout page. If you would like an elevation view to be rotated, send it to layout in a different format.
If you have a spherical backdrop image that you would like to use, you can import it into the Backdrops library and then specify it as Spherical.
Rotate or spin an overview camera by using keyboard commands or using the Mouse Orbit camera tool. If necessary you can change the focal point of the camera.
To close the view of the camera you can either Click on the lower X at the top right corner of a window or you can select File> Close from the menu.
The display of patterns in Orthographic Views can be turned on or off, using the Toggle Patterns option from the 3D menu.
Reasons why materials would flicker include plan placement, large terrain, materials occupying the same space and video card.
If you have an object in the distance, the program will generate the view to include that object and camera views may be difficult to see.
You can control the display of objects by checking or unchecking the Display column in Layer Display options for the active view's layerset.