Secondary screen freezes when filestream in fullscreen

i filestream one .png file on a quad and when i go fullscreen on secondary display the image disappears/the texture doesnt update with the geometry. same for videoIn.

(im not very familiar with inspector settings of Renderer, maybe i can do something from there ?)

i use macbookpro with ati 1600,
but i have tested it on another computer and the Renderer wouldnt even go fullscreen with filestreams on it.