CB User Fields DB error

Am running Joomla 1.5.25 and CB 1.7.1

My site works fine and the CB log-in and User Profile works OK. However when I use CB tools to Check CB User Fields DB I get the report that jos-comprofiler does not exist. If I then use the option to correct this error it reports that it cannot do this because the jos-comprofiler table already exists.

When I inspect the database I see that jos-comprofiler does indeed exist.

Can someone advise what is going on here?
Morgan

Is this a clean install or a restore of some kind?

It is not a new "clean" install. I recently upgraded both Joomla and CB versions but am not sure if the error dates from then. When I upgraded the CB version, I had problems and ended up uninstalling CB and re-installing the new version. The Joomla upgrade went OK - or so I thought! The database does have fewer tables than the original version but again I am not sure when this happened. Despite the reported error - all the functionality I need seems to work OK.
Thanks
Morgan

suggest you reinstall CB 1.7.1 over existing installation and then run tool check again.