iMovie - all videos i render are black but with audio

[23david]

hi, everyone.. im new with everything about mac, so please..

i've made some videos in imovie.. but when i export them and play them, all the video is just black color, though it has the audio... no video...

HELP..

sorry for my english

 

[23david]

come on... a need help with this

 

[GFLPraxis]

I have this too. Anyone ever seen it before?