I'm using Win8. When I attempt to watch any flashplayer video (youtube, hulu, etc) all I see is a green screen. Research tells me to right click on the green area, select the left-most tab (a monitor) and deselect hardware accelleration. I have no such tab or option to deselect the hardware accelleration. I've uninstalled and reinstalled flashplayer several time and have confirmed that I'm using the latest version.
How do I deslect the hardware accelleration if I don't have the 'monitor' tab?
Are you using an ATI card and what virus/security software are you using? After right clicking the flash content, you'll want to select "settings" then go to the left most tab and deselect hardware acceleration.