cannot enable full screen html5 video player in Gecko Browse

[ashim_cinesoft]

We are trying to create a windows application in visual studio for which we have used Gecko Browser and an HTML5 player called as Projekktor(http://www.projekktor.com/).

The player works fine but when we try to run the video in full screen the screen goes blank and we cannot see anything.

So, i want to know if it is the compatibility issue with the browser or the player.?

thanks in advance