On Fri, Oct 1, 2010 at 8:43 AM, Simon Hobson <linux at thehobsons.co.uk> wrote: > Kevin Ross wrote: > >> What you describe is called tearing, > > Yep, that's it > http://en.wikipedia.org/wiki/Video_tearing > shows exactly what I see. That's what i see when I look out the window (we had a 7.1 earthquake here recently)