intensity pro issue

mac pro 8 core 3,1, 12gb ram, NVIDIA GeForce 8800 GT, OSX 10.6.8, fcp 7.0.3

I just installed a blackmagic intensity pro card (HDMI). The card shows up in system profiler in slot 4, and I have downloaded the current drivers (I also tried 9.1, which is the previous version) I haven't been able to get picture on my monitor (vizio 32" flat screen with hdmi). I know that this monitor works and that the cable is good. The monitor just says 'no signal.' over a blue screen. I have checked all settings in fcp 7, tried both hdmi ports, checked 'all frames' and refreshed av devices. under 'video playback' I have tried every blackmagic setting with no luck. If the card was defective would it still show up in system profiler? Could both hdmi ports be blown?
thanks...very frustrated!

Andy