Yumex (I’ll probably remove it later, but it might be handy for removing cruft) complains that it can’t download stuff and bombs out. Even if yum proxy has been set and yum is working.
To fix, edit ”/etc/yumex.conf” and add the proxy in:
proxy = "http://your.cache.address:port"
The quotes are required!
Some information about the grub font error at http://unsolicitedbutoffered.blogspot.co.uk/2012/06/fedora-17-lxde-review-just-facts-mam.html