Installing xscreensaver-gl-extras-gss drags in the main xscreensaver package, which will install a new screensaver configuration in the GNOME menus. $ rpm -qa "*xscreensaver*" xscreensaver-base-5.12-2.fc14.1.x86_64 xscreensaver-gl-extras-5.12-2.fc14.1.x86_64 xscreensaver-gl-extras-gss-5.12-2.fc14.1.x86_64 xscreensaver-gl-base-5.12-2.fc14.1.x86_64 Instead, only the necessary libraries and binaries should be installed, and not the main xscreensaver package with the new configuration panel that's incompatible with the GNOME configurations.
Well, - For duplicate menu entry, see bug 530318 (this cannot be fixed in xscreensaver side, should be fixed in gnome-screensaver side) - Some hacks in -extras and -gl-extras actually needs binaries in -base, and creating more subpackages is just confusing when using xscreensaver binary as window lock manager. Once closing as a duplicate of bug 530318. *** This bug has been marked as a duplicate of bug 530318 ***