problem in openSuSE GDM

I get this message after the system boots stating that unrecognised image format found in /usr/share/gdm/themes/GDM-SuSE/background.svg and it doesnt show the openSUSE gnome theme.Can some one please help me.

did you try and change the background by pasting on over it?

Actually I installed gtk+ and after the first reboot it states like this.what can i do now.