Thanks, but you comment, I can not remove the Phoenix, that for this event, we need to capture VGA Power point (TVOne+Phoenix) and 2 cameras captured by the LFG CV.
But if you do not recommend going downgrade to Leopard, I will not do.

Thanks for your help, now I will try to lower the resolution, the Matrox to 3072X768, and then click the LFG in another slot.

Thanks