Yesterday, I had a small update on Ubuntu 12.10. After an update, I turned off my Dell Vostro 3450 machine.
Today, I tried to turn it on. When it started, I chose Ubuntu in my GRUB window, then I saw the Ubuntu logo and after that the screen went black and the only thing I could see is the mouse cursor, which I couldn't move.
My machine is using an Intel HD Graphics 3000 GPU.
Any ideas how to fix this problem?