How to turn off the grid in 3d studio max 2009?

To turn off the grid in 3D Studio Max 2009, go to the "Views" menu at the top of the interface. Select "Viewport Configuration" or simply press "Alt + V" to open the viewport settings. In the dialog that appears, go to the "Grid" tab and uncheck the "Show Grid" option. Click "OK" to apply the changes and hide the grid from your viewport.