I have a simple patch showing the problem, encountered on a macbook pro 2.8Ghz Intel Core 2 Duo with 4Go 1067MHz DD3 Ram, OSX 10.7.4, with Max6.0.8 and Max6.1.0.
FYI, I searched the forum for similar pb and the problem encountered by hc gilje (cf. https://cycling74.com/forums/capturing-jit-gl-videoplanes-using-jit-gl-node
) is *not* happening on my computer, which display the dozer video fine.
In case the problem do not show up on your comp, here are 2 snapshots of mode "Direct" and mode "through bus" respectively :