User disk mounting

Hi - Using dolphin I (or any user) can click on an unmounted system disk (an internal SATA drive, with a hard disk icon) and it is mounted without any passwords with a single click. This is Fedora 12 x86-64. I can't see why this should be enabled by default from the polkit configuration: xx:/home/jss:# pkaction --action-id org.freedesktop.devicekit.disks.filesystem-mount-system-internal --verbose org.freedesktop.devicekit.disks.filesystem-mount-system-internal: description: Mount a system-internal device message: Authentication is required to mount the device vendor: The DeviceKit Project vendor_url: http://hal.freedesktop.org/docs/DeviceKit/ icon: drive-removable-media implicit any: no implicit inactive: no implicit active: auth_admin_keep xx:/home/jss:# pkaction --action-id org.freedesktop.devicekit.disks.filesystem-mount --verbose org.freedesktop.devicekit.disks.filesystem-mount: description: Mount a device message: Authentication is required to mount the device vendor: The DeviceKit Project vendor_url: http://hal.freedesktop.org/docs/DeviceKit/ icon: drive-removable-media implicit any: no implicit inactive: no implicit active: yes If it's an internal disk, I would have thought filesystem-mount-system- internal was the appropriate option, but this is set to auth_admin_keep which should pop up a dialog box asking for a password. Is there another setting I should be looking at? Thanks Jeremy.