I'm being plagued by an issue in Freya whereby the clickable zone associated with an item moves up and left. By this I mean, for example, in Chromium the tabs have crosses to click in order to close them, but when something upsets Elementary the active zone for the X is shifted up and left by about 8-10px so that clicking the centre of the X doesn't close the tab and instead I need to move the mouse up and left to actually away from the X in order to close it. When this happens it effects ALL clickable items in a given application (buttons, tree views, menus, everything) but not necessarily all applications that are running at the time, so for example RubyMine might suddenly start exhibiting the issue while Chromium or Terminal are ok or visa versa. Closing and re-opening the application always fixes the problem.
I'm pretty sure that this is tied into maximizing and restoring the window size. I've managed to get Chrome to repeatedly show that it's ok until the application is maximised.
Has anyone else found this?