I have installed ubuntu 12.04 on dual boot with Vista using wubi. It worked fine for a while, but today, after logging in, it froze, i couldn't use keyboard or mouse(only move mouse without beeing able to click on anything). Even ALT+ SYSRQ + R + E + I + S + U + B didn't work. What the hell was that?
P.S. I tried to boot one more time, it hangs on login screen for a minute, and then unfreezes, i logged in normally, but still what was happening?