How to make video play fullscreen automatically?

The video's play fine but whenever I try to make it fullscreen the screen just stay's black I can hear the audio but the screen is just black. I can play video's from other site's in fullscreen no problem its just youtube, anyone know how I can fix this...

I want a free video player to play downloaded videos. It should be able to play in fullscreen. It should also be able to play a video in slow motion. In branded CD or DVD players, you ...show more

Below I have posted the link that should take you to a video of mine that I would like to improve the size of the video itself within the "black screen". http://www.youtube.com/watch?v=FfVNbvPSMzg&feature=related As you can see, it is visibly...

I have my video card (GeForce FX5200) connected to my TV via S-Video. In the nVidia control panel, I have it set up so that both monitor and TV display the same thing but also to have videos played on the desktop automatically show in full screen on...

Look, it's something more complicated. I just entered a website, which is a video on it. That video is playing in a "Google Video window". The problem is, there is no full-screen button :(. The full-screen button should be near the volume button...

i have a samsung 740N. No matter what video player i use or even if i play videos online on fullscreen there is a margin of black screen on the top and bottom of my screen. why does ...show more

this is really important!!! i needa know how to make my video stop a certain frame at a video, but after that i need to also add a button where i click it and a video plays!. i ...show more

So i have an isignia picture frame and i really need it to play a video but everytime i go to the video it says no picture files were detected. is there a way to get it to find the video and play it? thanks!

You know, when you post a youtube url, sometimes, it shows the video right there, and something it just shows the link instead? Is there anyway to make a certain video be able to play on facebook? I hate when I post a video, and it decides just to show...