I upgraded my RH9 to FC4 (I know, not the simplest choice), but almost everything worked initially. Mozilla plugins, such as acroread, java, did not. While futzing around trying to fix this, editing mozilla>edit>preferences, and turning selinux on and off, I found that mozilla would no longer work. Executing from the command line or the globe-click thingy produces an appropriate amount of disk-churning, but nothing is displayed. I tried "yum remove mozilla.i386" and "yum install mozilla.i386", and turning off selinux, and ./autorelabel and booting (grub) with selinux=0. The mailer in the toolbar "Evolution", works fine (can't see it at the moment since I am booted to WinXP), but firefox (umder FC4) has the same problem (not producing a frame). Additional details are: Kernel: 2.6.11-1.1369_FC4 from RedHat Fedora, Mozilla.i386 37:1.7.12-1.5.1 My son (Eric Dorman) referred to Linux as a benevolent virus, something which is beneficial, but continually mutating. I have watched tail -f /var/whatevr/messages, and seen nothing while trying to start the browsers. The accounting stuff is turned off. DISPLAY is set to ":0.0". I am using a NVidia GeForce 4200 I think, but am using the nv driver in "xorg.conf". Does anyone have suggestions as to what to monitor? I have put in some "echo 'I am wherever' lines in the mozilla execution script, but nothing surprising emerged. Wishing I had a text/curses browser, LeRoy Dorman San Diego