When adding features through new plugins, it is possible, that the menu takes a break and hangs over the content area.
Attachment: Design Bug in Main-Menu
I take a look at this, there are only 2 changes needed in the file plugins/CoreHome/templates/menu.css
width:100%; should be added by the class .nav on line 6 and .nav li ul at line 56 should be changed from width: 48em; to width:100%;
I have tested this only in Firefox, possibly it will not work in other browser.
please try in 0.2.35 I think i've fixed this issue