You will have less issues if you use the package manager or text package manager "spritz" or "equo" and a 1000times faster than emerge and it total process.http://wiki.sabayonlinux.org/index.php?title=En:Entropyhttp://wiki.sabayonlinux.org/index.php?title=Main_Page
Usefull commands if using text equo.
equo install equo spritz entropy layman portage
equo conf update
equo install vlc
Weekly run to fix any problems that might be there :
In the entropy equo part of the forum there is a update guide if you want to get everything up to date about 192 packages on 4.1gnome in the beginning of may might be more now.
Hope this helps.