More fun with the camera. It will not now connect. I am now getting an error message "error opening filter wheel" in the information section in camera setup, for camera 1 and 2 says "error in camera plugin calibration and error in guide camera plugin". When powering the system, filter wheel turns, camera fan comes on. So it is getting power. Of course I have the drivers for camera 1 as DL imaging and dl imaging +FW and for camera 2 dl imaging. This is new. My STL6303E attaches and connects with SBIG universal just fine. So reload the drivers? I ran a "disc cleanup" (Windows 7), could this have killed something? Would a "hot plug" cause this problem? I thought that I pulled the plug, but it might have been the wrong one hence not shutting power off (there are plugs everywhere, not finished with cable management). I am not sure of this, but in thinking about it it might be possible. I can't hear the fan running. I do not think this likely but it is possible I suppose (and I know not to do this). But again, on powering up the system the filter rotates and homes. I just can't connect this camera. STL does just fine.