How to make grid scale in 3d view? While working in blender I accidentally pressed some buttons from keyboard and mouse which made the grid look strange in 3d view (attached screenshot). How can I get the grid to it's default state, like when you open blender for the first time? 
I tried to make a new file, but when I append the object the grid changes back, like in the image.
In the properties panel right from your viewport (press N if not visible) you can change grid settings as you need them.