Comment 2 for bug 865465

StacktraceTop:
 getInstance (base=<optimized out>) at /usr/include/compiz/core/pluginclasshandler.h:153
 PluginClassHandler<GridWindow, CompWindow, 0>::get (base=0x0) at /usr/include/compiz/core/pluginclasshandler.h:185
 GridScreen::snapbackOptionChanged (this=0x8807740, option=0x8807928, num=GridOptions::SnapbackWindows) at /build/buildd/compiz-plugins-main-0.9.6/grid/src/grid.cpp:795
 operator() (p=<optimized out>, this=0x8809074, a2=GridOptions::SnapbackWindows, a1=0x8807928) at /usr/include/boost/bind/mem_fn_template.hpp:280
 operator()<boost::_mfi::mf2<void, GridScreen, CompOption*, GridOptions::Options>, boost::_bi::list2<CompOption*&, GridOptions::Options&> > (a=<synthetic pointer>, f=..., this=0x880907c) at /usr/include/boost/bind/bind.hpp:392