IS Nitro Emulator - Video Output

Hi,
I bought an IS Nitro Emulator and It hasn't the video output on the label (black screen,but I can hear the audio).
I've opened it and I saw that it has the DAC (AVE N-DOL) on the "NTR EMU MONITOR" board.
What's the problem? Is it software locked? Thanks

 

Hardware addon is what Ive been told.

 

Thanks for the reply, however how can it be an hardware addon if it has the same board of Capture with the video DAC? Do you have a picture of it?

This is my board :

 

Bump.

The DACs are correctly connected to the Spartan XC3S250E and the video ports. I believe that it's something in the FW (the SDK app has the video options, but it checks something as a flag and I can't select nothing), the board is complete and some Emulators have the video output. Does somebody have an idea?

Thanks