Strange behaviour during update

I get the red icon that some packages have to be updated (4) with red icon on the tray

I start update and I get a list of four packages to be updated(from 0.6.3-1 to 0.6.4-0.1):
gstreamer from 0.6.3-1 to 0.6.4-0.1
gstreamer-plugins from 0.6.3.3 to 0.6.4-0.1
gsreamer-plugins-mp3 from 0.6.3.3 to 0.6.4-0.1
gstreamer-tools from 0.6.3-1 to 0.6.4-0.1

but when I proceed it says that my system is fully updated...
If I run synaptic(+apt), it says that the system is fully updated...

Any idea how to proceed???
--

Antonio M.

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Working with  Mozilla 1.6 on Redhat Linux Fedora Core 1
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    Uso Mozilla 1.6 su Redhat Linux Fedora Core 1
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