I just upgraded to 1.9.2 and some things changed in my Main Menu. First of all I needed to remove the drop down arrows once again. With a bit of research I found that I had to change my child theme code from:
#header-menu > li.menu-item-ancestor > a {background: none}
to:
#header-menu > li.menu-item-ancestor > a {background: none !important;}
However, doing that messed up the alignment of my Menu items. I am currently using the code below to align but it is obviously not working due to the !important. Please help, thank you:
#header-menu > li:first-child { margin-left: 50px;}