Grid is on by default in AutoCAD 2011
You notice that the grid is enabled by default in AutoCAD 2011 and you want to know how to change it.
In previous releases of AutoCAD, the default setting was for the grid to be disabled however in AutoCAD 2011, the grid is enabled by default.
Grid settings are saved in each drawing. If you don't want the grid automatically enabled in new drawings, you should edit your template files and set the GRIDMODE system variable to 0 or run the GRID command and choose the OFF sub-option.