My system isn't getting updated correctly from RHN

[Mun]

Hi,

I'm running RHEL 5.4 and have been trying to move to 5.5 since last
week.  If I run "Package Updater" from my system, it says "There are no
updated packages ...".  But if I login to RHN, it shows 144 errata items
needed on my system.  It's weird that I'm getting two different stories,
isn't it?

Here's the issue: I've already applied the 144 errata items three times
via a scheduled update from RHN.  Each time, I get an e-mail indicating
all 144 items were successfully installed--which matches what I see as
the status on RHN.  But if I then go to the errata tab on RHN, it still
lists all 144 items as being needed on my system.

Moreover, my system still indicates that it's running 5.4 and all
indications support that as being the truth.

I rebooted after the last two update attempts; but that didn't seem to
affect anything.

Anyone know how to get my system in sync with RHN again, and to actually
have the update applied correctly?

Regards,

-- 
Mun