I went to update my silverlight for netflix the other day (March 11, the day Microsoft released a new version) and after install, all I get is "Plug-in failure" and a black screen. Running OS X 10.9.2, Safari 7.0.2 and Silverlight 5.1.30214.0. Tried multiple deletions of the silverlight plugin and re-install, no avail. I heard disabling graphics switching is the trick, but that hasn't helped either. Works fine in Chrome (which isn't dependent on external plugins for silverlight I believe). Any ideas?