I am trying to view a public tree using Chrome on my Nexus 7 but for some reason I cannot move the tree around the screen. I can scroll up and down on the Web pages but I cannot figure out how to manipulate and move the tree around. Normally you would use a mouse and when you click to move, the hand turns into a fist to simulate grabbing the Page. Unfortunately I can't figure out how to make it work. Has anyone come across this problem previously? And if so, is there a fix?