I have downloaded 12.10 image recently, and burned it to disc to install on my laptop.
Everything worked fine until now, when I started it first time it got stuck on loading (Ubuntu title and dots below).

I tried restarting and it got through, but a new problem appeared. After typing my password and logging in, it just freezes there with background and mouse pointer only visible. I can start terminal with Ctrl+Alt+F4 but that's all.

Then after few minutes, error comes up saying that application compiz has closed unexpectedly. Whatever I click (relaunch or leave closed) it just stays frozen with background only.