Unable to apply material on plane? I am unable to get a material to appear on a plane which I'm working on. I new to blender and followed the steps of most tutorial. In most cases, selecting a certain colour automatically applies to the object but mine does not seem to work that way. I have tried selecting all vertices in edit mode and assigning it but that does not work as well.

Any advice on why this occurs will be greatly appreciated.
In Blender Render the color in 3D view changes when you change material, but in Cycles Render you will only see the material change when Rendered. So when you change material in Cycles Render you don't see color change in 3D vieuw, unless you explicitly change the viewport color in the materials settings in Cycles Render