I am using Ubuntu without Unity but with Compizan Nemo as file manager. Since the update to Nemo 2.0 it does not render the desktop correctly anymore.
Instead of the background picture I see a black background and every window movement leaves a strange effect on the desktop:
Is this is a bug? Where to post Nemo bugs. Does someone know a workaround?
EDIT: I have created a bug report here.
The problem is, that in Nemo 2.0 it's capability to render the desktop was removed. See here