I am running SolidWorks 2014 under Windows 7 in a VirtualBox virtual machine. Menus sometimes do not display if they are over graphics area. If I make the FeatureManager Design Tree wide, so that it covers the graphics area, then the menu displays fine.
I also have problems if I make a construction line and it is horizontal or vertical. The line is invisible. If its on an angle, then it displays. I completely uninstalled and re-installed, no joy.