I am having a problem where there is a white square that is visible across every icon. I have attached a snapshot to show the problem.
This problem arose while I was using Gnome Shell and the Faience theme. I am using 12.10, and have tried resetting the desktop to default unity and gnome 3 settings but it did not help.
Best Answer
Are you using the GNOME3 ppa?
This seems a bug with the latest nautilus 3.6.3 update.
Anyone know how to file a bug report with that?