So I have an LG monitor hooked up to my mid 2013 680mx iMac and whenever I go to use the dock it takes awhile for it to come up. Or it doesn't come up until you start moving the mouse around. Once it does come up on screen 2 my iMac has the same issue pulling it back up on its screen. I have the dock on autohide like always but it also happens if you unhide it. Has anyone else experienced this?