I am using Ubuntu 10.04 LTS, dual boot with Windows 7 on ThinkPad T400, I followed Ubuntu update hints and installed some update for my ATI Radeon graphic card, but when I boot to Ubuntu (means I can still load GRUB), the screen goes to blank and no matter what key stroke, I can not get any responds. I can't even open a terminal.
However when I hit the power button, the computer would pop out the Ubuntu shutdown screen briefly and shut down.
I figure out I should delete the updates package for my graphic card, but I don't even get a chance to go to text terminal, please help me!