> I have tried your idea: changing themes, deleting .gnome, .gnome2 > and .gnome2_private. I've also tried to delete .gconf and .nautilus > But the problem is still there. > I really don't know what to do. Anyone has an idea ? Try making a new user. See if this happens to the new user as well. Then you know if it is system-wide or local only to you. Also, does it happen to root? If it works for root, but no-one else, maybe there's a permission set wrong somewhere. Perhaps you could also try reinstalling gnome-themes, nautilus, etc. Maybe something just got whacked up that a forced reinstall might fix. If you do this, I would do it from the command-line, with your X-server shut down. To get this, su to root and init 3. Then use your CD's, or if you have it, apt-get to reinstall. I tend to avoid yum. I've had problems with it messing up my system. --andy