I have a fresh Fedora 16 64 bit KDE install from DVD iso on USB. It boots up to the "Welcome" screen but when I click "Forward" to proceed to the license information screen the button darkens like it's been pressed and just stays like that. The cursor hangs briefly and returns to normal but the button stays "pressed" and nothing happens having waited long enough to try and find a solution on Google (i.e. several minutes). If it matters and I suspect it does I have an NVIDIA GeForce GTX 580. FWIW I had the same problem on GNOME a while ago but gave up.

Like I said this is a fresh installation with no personal data whatsoever so I have no problem trashing it aside from the time it takes to reinstall. I am dual booting with Windows 7 and preferably that install doesn't get involved in the scuffle.