(1) I was using NAV 11.0.2 with 10.5.6 with no problems. Once I updated to 10.5.7 NAV stopped working, when I click on NAV it attempts to open but then after few seconds I get a message window and it shuts down. NAV Update also give error message, and Nav Uninstaller simply won't respond when I click on it. I re-installed NAV 11 again, same problems.
(2) I then installed NIS 4 which I worked almost fine with 10.5.6 but was causing me some problems similar to NIS 3 with Tiger, and was causing my internet to slow down much, and I was getting the APPLE ROUND COLORED BALL much after installing NIS 4, so I uninstalled it. I re-insalled it with 10.5.7, so I can get to use NAV 11, the applications opens, but LiveUpdate again give message errors and won't update. So I did a manual update of NAV 11.
(3) Issue with NIS Firewall Settings: After I turn ON Application Blocking and turn ON Connetion Blocking, and click the LOCK to prevent further changes, the Connection Blocking ALWAYS turns OFF ! so I go back to keep the LOCK open so both can stay ON.
Why is this happening ? It does not happen in the other firewall settings of Norton Firewall nor in any of the setting of NIS 4.