ubun2

all I did was tick the box in compiz manager, work arounds where it was supposed to enable system x to talk nicely with glx and everything froze solid. No terminal couldn't disable compiz nothing.
(Was it glx or maybe lx can't remember) I am stunned and it was all working so well.
Now when it reboots there is a terminal, firefox and support center all frozen on the screen.
I have tried alt+printscreen+r+e+s+u+b no change.
Can anybody help on this?