Zinf: Zinf is not FreeA*p!

Zinf 2.2.5 crashes at startup, right after I clicked on
the "no" button of the "reclaim file types" dialog. The
console shows the following:

(<unknown>:829): Gdk-WARNING **: Attempt to draw a
drawable with depth 24 to a drawable with depth 32

(<unknown>:829): Gdk-WARNING **: Attempt to draw a
drawable with depth 24 to a drawable with depth 32

(<unknown>:829): Gdk-WARNING **: Attempt to draw a
drawable with depth 24 to a drawable with depth 32

(<unknown>:829): Gdk-CRITICAL **: file gdkwindow-x11.c:
line 2510 (gdk_window_set_back_pixmap): assertion
`pixmap == NULL || gdk_drawable_get_depth (window) ==
gdk_drawable_get_depth (pixmap)' failed
The program '<unknown>' received an X Window System error.
This probably reflects a bug in the program.
The error was 'BadMatch (invalid parameter attributes)'.
(Details: serial 919 error_code 8 request_code 62
minor_code 0)
(Note to programmers: normally, X errors are reported
asynchronously;
that is, you will receive the error a while after
causing it.
To debug your program, run it with the --sync
command line
option to change this behavior. You can then get a
meaningful
backtrace from your debugger if you break on the
gdk_x_error() function.)

I got the same result on two different machines.
kernel 2.8.1, X11R6.8.1, gnome 2.6.1 and 2.8.0, GTK+
2.4.3 and 2.4.10.