The "underlining" you speak of is when the ATI drivers fail to load 3d hardware acceleration support. When you fixed your acceleration, by disabling AIGLX support, the underlining went away.
-- Mouse Pointer in kind of underlined. https://launchpad.net/bugs/39614 -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
