help needed for bug #512115 (Gdk-CRITICAL **: gdk_x11_atom_to_xatom_for_display...)

[Zoltan Kota]

Hi,

Could you help with the following bug?
https://bugzilla.redhat.com/show_bug.cgi?id=512115

It is a 

Gdk-CRITICAL **: gdk_x11_atom_to_xatom_for_display: assertion 
`atom != GDK_NONE' failed

error. This seems to be appeared with gtk 2.16.x. Pybliographer on F10 
with gtk 2.14.7 has no problem.


Thanks!
Zoltan