after upgrading 12.04 to 12.04 unity gui don't show

[Filipe Marques]

After upgrading Ubuntu 12.04 to Ubuntu 12.04 i restart the pc (laptop - Toshiba L500), log in with my password and i get in my account and then i don't see the menus of unity and the launcher with menus of my apps.
I press the windows key for start the launcher and he don't show and the menu on top also don't show and i can't shut down, restart the computer in normal way. I just shut down the pc with the outside button of hardware of pc !
I tried open folders and i can but the buttons of the windows don't show the maximize, minimize and close buttons.

[Seth Arnold (seth-arnold)]

Thanks for taking the time to report this bug and helping to make Ubuntu better. We appreciate the difficulties you are facing, but this appears to be a "regular" (non-security) bug. I have unmarked it as a security issue since this bug does not show evidence of allowing attackers to cross privilege boundaries nor directly cause loss of data/privacy. Please feel free to report any other bugs you may find.

[Filipe Marques (pmsw)]

Just because this bug i have to re-install the operating system, but, this time i will install Xubuntu 12.10 instead of Ubuntu 12.10 because the graphics card of my laptop Toshiba L500 buyed in 2009 don't support Ubuntu 12.10 (the new features) very well !