The second bit about the warning/error message should be moved to its own bug report. However, I believe it's just excess verbosity: the contents of the message are just what vncviewer displays on the console while running. It'd be nice if it didn't do this. :)
-- Scrollbars poorly implemented in "VNC Viewer" Terminal Server https://launchpad.net/bugs/51741 -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs