#5 Error when adding/updating/viewing Administrator usernames

[MustardMan]

Administration > User Management >

Click on any existing username. The browser goes blank.

Error in apache logs is:
PHP Fatal error: Call to a member function getQuoted() on a non-object in /var/www/html/openbiz/bin/data/BizDataSql.php on line 237

This is on the latest Siremis v4.2.0 downloaded today