ARRRRGHHHH!!!!! Just went to use my 70-200 and there's no control of the aperture. In the mount the wee blade that controls the aperture can be moved manually and does control the aperture but it's lost all it's springiness and the camera can't control it. It's the 70-200 VC A09 model not the newest G2 but one before it. I bought it used so no warranty. Anyone recommend where to get it repaired or have any idea what I'll be looking at for costs?