OK so since the latest update I have been unable to view any web based video such as flash video in full screen. I have dismissed the possibillity that it is the driver, for I have tried all that's available to my system. I have also dismissed the posibillity of it being a browser issue, for I have tried with Firefox and with Chromium with the same end result. I can still hear the audio, but the video does not render in fullscreen. I am only using one monitor on a Radeon HD 5770. Worked and worked very well prior to the distribution upgrade that just happened for me. This tells me that it's not a hardware issue either. I am using Ubuntu 13.10 with Gnome. Any ideas?