When using pix_video (either in my own patch or in any help file example) my iMac in work will use the iSight with no problem at all. If I load the same patch on my own Macbook Pro (Retina) I just get a white screen and this in the console window:

[pix_video]: backend #0='Darwin' : darwin dv iidc analog
could not make new SG channnel error -9405
[pix_video]: no valid video backend found

I'm using the same operating system on both machines (OSX 10.9.3) and I'm using PD-Extended in both cases.

Does anyone have a solution for this? Every thread that mentions it seems to have gone cold.

This is my first message on this board, I've only been using PD for about a week!