Problem starting ubuntu 12.04 in virtualbox

[Jose_Carlos]

Hi guys,

Last night, do not install in ubuntu, that today to start ubuntu 12.04 in virtualbox do not start in visual mode, it stays frozen. I have entered the console mode "Control + alt + f1" and click "startx" and throws me an error.


Links of screenshots with the errors:

• 1º to start in console mode. http://imgur.com/i37fyts
• 2º typing startx. http://imgur.com/Mlb4y2e
• 3º the cat / var/log/Xorg.0.log. http://imgur.com/hFK5xWL

I hope you can help me, thanks.

[Jose_Carlos]

Finally resolved.
Uninstall the Nvidia packages and install them again.
Delete authority file $ HOME / .Xauthority
Update virtualbox guest additions and also virtuabox ready.