1.55.1. RHBA-2010:0314: bug fix update
The firstboot utility runs after installation. It guides the user through a series of steps that allows for easier configuration of the machine.
* Clicking [Change Network Configuration] from firstboot's network configuration page launched a separate network configuration window. If the user then clicked [Forward] on the still-visible main window, the separate configuration window became hidden behind the full-screen main window.
Further mouse-clicks would be ineffectual and it could appear to the user that the system had become unresponsive. It was necessary to use the alt+tab keys to reveal the hidden configuration window.
Users are advised to upgrade to these updated packages, which resolve this issue.