Possible Duplicate:
How well do laptops with Nvidia Optimus work?

Today I tried to install the Nvidia driver ( from their website) for my Nvidia GT520M on my 11.10 ubuntu. I have stop lightdm so as to not have the " Xserver problem message" and the install was good but now when I restart my laptop, i don't have the normal colors and cases to put my password but only text in black and white.. like "

*Starting anac(h)ronistic cron anacron [OK]
*Starting deferred execution scheduler atd [OK]
*Starting periodic command scheduler crond [OK]
*Checking battery state... [OK]
*Running local boot scripts (/etc/rc.local) [OK] " 

Could anyone help me please?

EDIT : Thank you for your link !

But now I make a " sudo sh NVIDIA.run --uninstall" so as to uninstall the driver I installed today and the problem is that I don't have anything after the violet page with " UBUNTU" and the orange&white points.. I only have a blackscreen & ctrl+alt+fX doesnt work

Do anyone have an idea to fix it or am I obliged to reinstall ubuntu?

marked as duplicate by Jorge Castro, jrg, Octavian Damiean, Marco Ceppi Nov 18 '11 at 20:18

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I had the same problem. I just went to Additional Drivers and that fixed it and installed the Nvidia drivers.

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