My machine is behaving strangely for about a month. It completely freezes when gnome's file dialog is about to appear. For instance, if I choose "save as" in gimp, my machine freezes - no mouse, no keyboard, no answer to ping. This happens also with firefox's upload file button in a html form, for instance to send a picture to fotolog. kernel is 2.6.11-1.14_FC3 Some of the installed versions are gnome-desktop-2.8.0-3 gdk-pixbuf-0.22.0-15.0 gtk2-2.4.14-2.fc3