I accidentally ran the command "unity-greeter" and my theme got screwed. The icons are changed and the buttons don't seem to be ambiance themed anymore. The buttons and icons are the same in Gnome3 shell as well as in unity. Gnome tweak tool doesn't work in changing it back. I also tried reinstalling ubuntu-desktop. It may be a problem with some sort of configuration because the guest session looks fine. I've attached a screenshot. Is there a way to fix it?
Edit: In .xsession-errors there are multiple instances of "(gnome-settings-daemon:6086): GLib-CRITICAL **: g_variant_get_int32: assertion `g_variant_is_of_type (value, G_VARIANT_TYPE_INT32)' failed"...
Nautilus also consistently crashes after a couple minutes of use with this error: "(gnome-settings-daemon:6086): GLib-CRITICAL **: g_variant_get_int32: assertion `g_variant_is_of_type (value, G_VARIANT_TYPE_INT32)' failed"
I'm using 64 bit Ubuntu 11.10
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