I have the same problem .... did you manage to solve it?

brute force way... connect the video output from processing computer to the isadora's computer via canopus advc110 or a 
Matrox MXO2 or blackmagic intensity. the last 2 cards, both have the possibility yo manage a vga imput.I did this with a 800x600 vga stream with 5/10 fps delay using the matrox device.

No. I choose to use the vga output and transform it in svhs to import it in the other computer...