Chroma key problem

I followed the chroma key tutorial (the "My Planet" on) exactly but the media mixer wass just all black. Why?

Also when i import my video the media-mixer just has a couple of green lines insteadof the video

 

"make-opaque" button

As of version 0.957 the rectangle tab and the track properties tab (both in upper half of window) now have a "make video opaque button":

Move to the rectangles tab by clicking on the green rectangle of any track (in the arrangement or current tab, bottom right of window) to reach the rectangles tab.

click on the "Make opaque button" (right side of track rectangles display). this should make you video instantly visible.

Thank you

Thank you

YES

OMG, thanks, I was so pissed cause it wasn't working.

thanks

there is another post that needs the same question answered.