Duplicate user accounts after Vista SP1 installed

I just installed the Vista SP1 and the first noticeable effect is that I
now have duplicate user accounts. For example, on my login in screen, I
have two icons and password entry boxes for my administrator account,
either of which I can use.

There is some discussion of this type of problem here and across
different forums. However, the two usual suggested solutions don't seem
to apply.

(1) Look for a windows.old directory in C:\ and delete it.

This suggestion seems to apply to upgrades from XP to Vista or from one
flavour of Vista to another. Anyway, I couldn't find a windows.old
directory.

(2) If you have a fingerprint reader, uninstall and reinstall the
Omnipass software (or go to the Omnipass website and download a patch).

I do have an integrated fingerprint reader -but- it is a TouchChip
Fingerprint device with UPEK software.

Nevertheless, I tried uninstalling the software and the device. This
does not solve the problem and leaves me still with duplicate user
accounts.

So, I'd appreciate any suggestions.

wohz

(I have a Dell XPS M1530 running Vista Ultimate)


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wohz
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