using a blackmagic extreme for composite input on a tour... works flawlwess most of the time but every now and then I get a few seconds of jerky video then all is normal again. I cannot be 100 percent sure at this point that it is my catalyst but I assume that the ledpros driving our slight are not causing this. anyone have any thoughts? anyone had any issues at all like this? its very random and I have not been able to see this happen on the catalyst itself.