I have Ubuntu 13.04 and one day ago I've just installed updates, after I turned off my computer and then when I restarted I just can see a black screen with cursor after login.
Note: I can login.
I've tried to start with unity 2d but it doesn't come with this Ubuntu version, I've installed but it wasn't added to desktop managers options. Also I've tried to reinstall my ATI Drivers from a tty (Ctrl+Alt+F1).
Note. My graphics card is an ATI 6850HD.
Please, help what can I do?