I hope either (1) the old viewer becomes available, or (2) Silverlight is revised to improve its feel. When I'm "panning" through a synth, I don't want to zoom in on whatever was front and center when I release the mouse button. I preferred clicking to do that. Also, the viewer seems to leave much more of the synth in the dark while panning, and seems slower to load. This destroys the whole effect. Please change this or return the original viewer to us.