Somehow I managed to remove the Home icon from my Unity bar. I ran nautilus and locked its icon onto the bar. This works like before but the problem is the icon I am getting is the grey file cabinet, rather than the Home icon.
I tried several things I found on the net, but nothing. BTW, I don't have a "nautilus.desktop" under /usr/share/applications. The closest filename I have is "Nautilus-Actions Configuration Tool". Not critical but any ideas?