Stuck Camera in editor

i need help on the camera, when i just got on this morning, my editor camera wont move at all. i mean AT ALL. i cant rotate it and move it with the mouse, and even in hand mode doesnt work AT ALL. it works fine at the playing mode (as in my (weird abstract) game is a fps (you can rotate and move by aswd and rotate by the mouse)) but please help!! it can be my last edit on everything (also doesnt work on ANYTHING)!!!

One thing, maybe.
Happened to me during my earliest time.

Are you looking at SCENE tab instead of GAME tab on your window editor?