reproduced with Inkscape 0.46+devel r22566 on OS X 10.5.8
possibly the other reports originating from the same SVG octree file share a common cause (nested 'translate' attributes of grouped clones, maybe aggravated by 'resize page to selection' which adds an additional translate attribute to the parent group "Layer 1"): Bug #474963 “Can't export to WMF (UniConvertor failed)” Bug #479553 “Moving shape with connectors, connectors go wild” Bug #479577 “Cannot move (drag) an object”
reproduced with Inkscape 0.46+devel r22566 on OS X 10.5.8
possibly the other reports originating from the same SVG octree file share a common cause (nested 'translate' attributes of grouped clones, maybe aggravated by 'resize page to selection' which adds an additional translate attribute to the parent group "Layer 1"):
Bug #474963 “Can't export to WMF (UniConvertor failed)”
Bug #479553 “Moving shape with connectors, connectors go wild”
Bug #479577 “Cannot move (drag) an object”