If tl-setup fails to install a package, e.g. python-ldap (bug 7330), in text mode we print a warning about this and the setup continues when pressing enter. In graphical mode we say: > "Failed to resolve optional packages and dependencies. > > The configuration process will continue but some parts of ThinLinc > might not work correctly. [...]" But you can't press the forward button. You have to go back and un-check the checkbox and then continue. This is a bit confusing when we say that the configuration process will continue.
*** This bug has been marked as a duplicate of bug 4631 ***