I just noticed that the blit API in GTK* is causing a seg fault on my desktop. Can anyone confirm this on another system. Has anyone made any changes that you are aware of that might have affected this part of the code? I am seeing problems with examples/animation_blit.py and examples/poly_editor.py so it looks like anything using the copy region / blit API in GTK is broken, at least on my system. tkagg is working fine, so it is probably not a problem on the agg side, and GTK and GTKAgg are both affected. I don't use this functionality often, so I don't know how long the problem has persisted. In fact, it is possible I have never tested it on this system (solaris x86 with pygtk 2.6) JDH