I was so excited to recieve my sl66 today...until! My mirror is stuck in the up position (was testing the mirror lock-up button) and I can't get it down. The shutter button will depress all the way, but the shutter won't fire. The crank will not move in either direction, even with the little button pressed. I have the same problems with the back on or off. Previous to this mirror lock up the crank was working fine and I was able to load my back with no problem that I noticed. I have tried pushing gently on the mirror, as I've seen recommended, but no luck. Every thread I've found with a similar problem seems to end up in sending it away, and the prospect of 4 months wait for Oceanside Camera really is a buzz kill for my new toy. Any ideas? I'm crossing my fingers, and thank everyone in advance for anything they can offer.