How does your X freeze? Is it actually X that freezes or is it gnome and the gnome-panel? I think this sounds quite similar to my experience that I have under bug 211471.
https://bugs.launchpad.net/bugs/211471 -- [gutsy] networkmanager crashes when trying to access a wpa-enterprise or open network https://bugs.launchpad.net/bugs/145134 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs