[vimeo]http://www.vimeo.com/14199948[/vimeo]
This only happens when I'm using my 3 video cards together (using 2 of them is not a problem). It always happens when I import an .obj file, and sometimes when I load an 1.22 scene (It seems its related to resolution in the last case but I haven't tested enough).
Also I note that takes a lot of time between I click on the obj node and octane actually loads the scene in the gpu. In that period the mouse shows the "thinking" (or loading) circle. (My recording app doesnt show the mouse icons change).
Radiance: I't doesn't has to be solved now, I'm not in a hurry. If you are too busy, let this hang some days.

Thanks