Hi, I've been tasked with trying to get Mavericks reinstalled onto a Mac that comes up with a network login after booting. I have a bootable Mavericks image on a USB drive. However when I attempt to boot the Mac with the USB drive I get the Mac prohibited icon. I can take that same USB drive and boot with it onto a Mac that is not configured for network login. Is there something from preventing me from reinstalling Mavericks onto a machine that is configured for Network login?