Seeing this message when I start many (all?) gtk2 applications: Gtk-Message: Failed to load module "atk-bridge": libatk-bridge.so: cannot open shared object file: No such file or directory I'm current from F14 including updates-testing.
As noted in bug 620797, installing at-spi2-atk makes this error go away. So apparently something needs to be requiring at-spi2-atk so it gets installed automatically when needed.
-- Fedora Bugzappers volunteer triage team https://fedoraproject.org/wiki/BugZappers
Not a gtk bug, and the message is harmless.