Never mind.... Somehow the upgrade changed my .config/xfce4/mcs_settings/wmtweaks.html to have "xfwm/UseCompositing" value="0"
Now... I would have thought that all that did was uncheck the box in WMTweaks "Enable Display Compositing" But... it made the whole Compositor Tab in WMTweaks vanish. Unchecking the box now leaves the tab alone. So chalk this one up to a random crash during the upgrade I think. -- [edgy] xfwm4 4.3.99.1svn+r23334-0ubuntu1 breaks compositor https://launchpad.net/bugs/65593 -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs