We recently announced that our Lifesize Cloud Web App is available on Internet Explorer 11. Please note that we do not currently support screen sharing on displays with resolutions above 1920x1080 on Internet Explorer 11. If you would like to screen share, please lower the resolution of your display to 1280x1080 or download our Lifesize Cloud Desktop App for Windows. Please know that we are working hard to enhance the Lifesize Cloud Web App in an upcoming release so that screen sharing will automatically work on PCs with higher resolution displays.
The Lifesize Team