Gtk2 :: Gimp-2.2.8 crashes when opening a file

Hello everybody!

I use DSL 2.3 as a live cd. I have installed gtk2-0705.dsl and gimp-gtk2-2.2.8.dsl using the DSL Download Extension Panel. Every time I open a file in gimp, it crashes. So I tried starting gimp using the terminal:
When I start gimp, bash returns:
(gimp:1170): Gdk-WARNING **: Error converting from UTF-8 to STRING: Could not open converter from 'UTF-8' to 'ISO-8859-1'
and 6 times:
(gimp:1170): Gdk-WARNING **: Error converting from UTF-8 to STRING: Conversion from character set 'UTF-8' to 'ISO-8859-1' is not supported
When I click the "File" menu, the second warning occurs twice again.
When I click at "Open...", bash returns:
(gimp:1170): Gtk-WARNING **: Could not find the icon 'gnome-fs-home'. The 'hicolor' theme
was not found either, perhaps you need to install it.
You can get a copy from:
http://freedesktop.org/Software/icon-theme/releases

(gimp:1170): Gdk-WARNING **: Error converting from UTF-8 to STRING: Conversion from character set 'UTF-8' to 'ISO-8859-1' is not supported

(gimp:1170): Gdk-WARNING **: Error converting from UTF-8 to STRING: Conversion from character set 'UTF-8' to 'ISO-8859-1' is not supported
And when I then select a file, gimp crashes (before I can click the "Open" button.):
(process:1170): Gdk-WARNING (recursed) **: Error converting from UTF-8 to STRING: Conversion from character set 'UTF-8' to 'ISO-8859-1' is not supported
aborting...
gimp: terminated: Aborted(script-fu:1171): LibGimpBase-WARNING **:

script-fu: wire_read(): error
So I followed the link but I don't know what to do then.
Has anybody an idea what to do?
Thanks in advance,
Max

Same problem in 2.4rc1

disable the image preview in the preferences

It works!
Thank you!

original here.