Updated the plugin code - no issues.  It then called to update the groups db - no errors thrown, but it kept calling to update the db again and again even after a message saying that the db was updated successfully.  I went into the base_plugins table and found that the 'update' field for the groups plugin was set to '2' (instead of 1?) and so I changed it to 0.  A visit to the admin page again experienced the same message - to update the db which was seemingly already updated.  I ended up manually deactivating the plugin so that I could at least get to the plugins page.

So far, out of five core plugins I've tried to update, I've had issues with all of them. Am I missing something?

Thanks.

Harold