Yet another one has be boggled. I cannot use the system-config-firewall (gui) in my login. It opens, presents a blank interface, then crashes, and has to be killed to closed. What is really strange is that it runs perfectly from my son's login! The only thing that comes to mind is that I installed Dan's Guardian a few days ago, without realizing what it was. When I saw what I had done, I immediately removed it (bad past experience with it on Debian). Anybody got an idea??