abrt version: 2.0.3
architecture:   x86_64
cmdline:        
comment:        The issue appeared spontaniously while executing Eclipse IDE on the background.
component:      Zim
executable:     /usr/bin/zim
kernel:         2.6.43.5-2.fc15.x86_64
os_release:     Fedora release 15 (Lovelock)
package:        Zim-0.56-1.fc15
reason:         pageindex.py:601:do_drag_data_received:TypeError: 'NoneType' object is not iterable
time:           Thu Jun  7 14:49:36 2012
uid:            501
username:       gszasz

backtrace:
:pageindex.py:601:do_drag_data_received:TypeError: 'NoneType' object is not iterable
:
:Traceback (most recent call last):
:  File "/usr/lib/python2.7/site-packages/zim/gui/pageindex.py", line 601, in do_drag_data_received
:    treepath, position = self.get_dest_row_at_pos(x, y)
:TypeError: 'NoneType' object is not iterable
:
:Local variables in innermost frame:
:info: 2
:dragcontext: <gtk.gdk.DragContext object at 0x2f99d70 (GdkDragContext at 0x2f48900)>
:selectiondata: <GtkSelectionData at 0x7fff92cec3a0>
:self: <PageTreeView object at 0x2de35a0 (zim+gui+pageindex+PageTreeView at 0x2e8a060)>
:source: <Path: Jenkins:Resources>
:names: [u'Jenkins:Resources']
:time: 28347777
:y: 200
:x: 121