Hi to all,
yesterday I upgraded my Fedora installation via preupgrade from 11 to 12.
Now there are some icons missing!
If I go to the 'System' menu in the panel, there are no icons at all.
If then I select the 'Settings' submenu, all of its icons are visible.
I figured out that the package redhat-menus and fedora-icon-theme make up the representation of this icons and reinstalled them.

Then I additionally executed 'gdk-pixbuf-query-loaders-64 > /etc/gtk-2.0/x86_64-redhat-linux-gnu/gdk-pixbuf.loaders' (I read this somewhere in the forum).
But nothing happend so far?!
I made further efforts trying to find out the icon of the System Configuration Menu
(System -> Administration). The file '/usr/share/desktop-directories/SystemConfig.directory' contains the icon that should be displayed for the System->Administration menu.
This file contains the line: Icon=preferences-system
Good so far...
Now I searched at /usr/share/icons/Fedora and found out that there is no icon matching this name! There aren't much iconsets that contain such a named icon but the gnome/HighContrastLargePrintInverse/HighContrastLargePrint iconsets really contains this icon (preferences-system.png)
So I thought that selecting the gnome icon theme would fix this problem, but this also didn't help!
Now I'm at the end of my knowledge (or I don't want to rename single icons to match the names required)...
Does someone have any idea about this??