gnome not working

[Alfieri Morillo]

Very good days, I have the following problem eh unloaded ubuntu 14.04 with
unity and eh tried to install other graphical environments to him, gnome,
cairo-dock and they do not load the environments even if already estan
installed so they appear in the panel of selection of environments, tendra
this solution? Thank you very much for his help if her there are regards!!
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