warning: preg_match() expects parameter 2 to be string, array given...

... in C:\wamp\www\drupal-6.3\includes\bootstrap.inc on line 723.

I had the prior version of this module installed and working perfectly on my development box and now get this warning message after upgrading to the latest version.
It immediately occurs when using the newly created 'Video' content type. Attempting to upload a file results in the following.

Fatal error: Call to undefined function field_file_load() in C:\wamp\www\drupal-6.3\sites\all\modules\filefield\filefield_field.inc on line 79

I'm going to try a couple more things and will report back.