gl_view_hide_grid: assertion `view && GL_IS_VIEW (view)' failed Edit
gLabels will hangup when grid or markup have been toggled during a previous session. (Bug #1434324)
- This is fixed in version 2.1.3 (Unstable)
To get gLabels started again enter gconf-editor in the terminal and choose
and check [x] grid visible and [x] markup-visible manually again.