Upgrading 8.0.2 to 8.0.3 on Windows XP

Hello,
Wondering if somebody can help me out with upgrading a PostgreSQL
8.0.2installation on Windows XP SP2.
I can´t seem to upgrade to 8.0.3 on a Windows XP Machine. The machine has a
limited user account running the pgsql-8.0 service. The first installation
was performed succesfully with the win32 installer.
A subsequent upgrade using the upgrade.bat file from the
postgresql8.0.3win32 distribution hangs at the very end with the
following isntallation
error: "Verify
that you have sufficient privileges to start system services"... I must
cancel the installation at this point and it automatically performs a
rollback.
I cant seem to figure out why this keeps happening. I´m doing the upgrade
from an administrator account with all privileges, the limited user account
which runs the pgsql service has log on as service rights...
Anybody know a solution to this, or do I simply need to dump my database,
uninstall 8.0.2, do a fresh install of 8.0.3 and reload my database?
Thanks in advance,
gio

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