Unity 4.6 GUI vs Unity 4.5 GUI

Hello guys. Just wanna ask Why does my editor looks like this. As you can see in the scene part. the button is too big. while in game its not? my problem is it is hard to edit, hard to drag that gui button and a specific point. My project was made using unity 4.5, I wanted to try and update my projects ui using unity 4.6, when i tried to add any kinds of object under ui. they are all big, but the other game objects are not. is 4.5 and 4.6 not compatible? or is this just a bug. I tried restarting unity but no use.

That’s because the way canvas renders. Canvas measures distance in pixels, where as the rest of Unity measures it in Unity units (nominally metres).

To fix change the canvas Render Mode to Screen Space - Camera.