Just downloaded and installed as administrator. No anti-virus, firewall off.  The plane is running great in FSX except there is no sound. My other planes have sound. I also notice that there is no "countdown" while the plane is installing, but this is my first Coronado so that might be characteristic of it.  I have reinstalled the software twice. Any dieas? Thanks.

Sorry everyone...it was a hardware issue. I had just installed a new gaming keyboard, but had not designated the sound through the keyboard software.  Have a good one. Plane is great!