Black Screen in iStop, cannot view through camera

Hello; we have had a recurring issue with getting no image through our camera with iStopMotion 2 Pro. Currently, none of our 3 stations are able to capture footage (only a black screen is seen). Any ideas for solving this mystery would be most helpful. Our specs are:
iStopMotion 2 Pro
MacPro 2.93 GHz Quad Core, 6GB RAM, OSX 10.8.4
Running both QT 7.6.6 (Pro) and QT 10.2
Project set for HDV1080, 25 FPS
Using a Canon Vixia HV30 via HDMI to a BlackMagic Intensity Pro card; Blackmagic HD1080i 59.94, Pixel Aspect Ratio Square 1:1 selected

many thanks

Just to make sure: You selected the Blackmagic HD 1080i59.94 input in iStopMotion? If so, do you get a picture in Blackmagic Media Express with these settings?