[ubuntu] Nvidia drivers: black screen after install

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http://ubuntuforums.org – I installed Ubuntu 12.10 on my old laptop (Asus X50N). I downloaded new nVidia drivers (my video-card is nVidia 7000M) and installed it as described here. After reboot I see for 1 second login command line and then black screen with blinking cursor (I can't type anything). In safe mode I removed nvidia-current package but I still see black screen. What I should do? Thank you. (Hardware)