2003 Pontiac Grand Prix Air conditioner vent output will no

The air conditioner in my car blows cold air and the it will blow properly from low, or 1, to high, or 5. The problem is that no matter if it set it to floor, front, or winshield the air will come out of all the vents. I can't redirect the air at all.

I did listen to see if it could here a sound when I moved the control to different positions but I didn't hear anything.

I don't know what to check or where to even start to fix this problem.

HELP????