Assertions in glines

[Marco Colombo <m colombo ed ac uk>]

yo!!!
I've downloaded gnome-games from cvs and compiled it successfully. The 
problem is that when I run glines, it does't show any balls and I get 
the following assertions:

** (glines:1415): CRITICAL **: file games-preimage.c: line 126 
(games_preimage_render): assertion `preimage != NULL' failed

(glines:1415): Gdk-CRITICAL **: gdk_draw_pixbuf: assertion 
`GDK_IS_PIXBUF (pixbuf)' failed

[...]

(glines:1415): GLib-GObject-CRITICAL **: g_object_unref: assertion 
`G_IS_OBJECT (object)' failed

This is probably a known error, but I don't know where to look to solve 
it...

Please help me! I have a patch to remove some evil constants in glines.c 
(all those 9s).

ciao, marco