I can confirm this as well. Because the problem is apparent in the default theme, the bug is carried over to my / our Ubuntu specific Human, Tangerine and Tango themes. As I have absolutely no clue yet what is causing this problem on the default theme I'm not jumping in straight away to fix this.
-- forward and back buttons show artifacts https://launchpad.net/bugs/63101 -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
