DB_DataObject

I am using the DB_DataObject package, and have tried the following code: $dbpage =& DataObjects_Pagedata::staticGet($page); However, I get an error that class dataobjects_pagedata does not exist. I have configured the dataobjects and verified that the file containing the class DataObjects_Pagedata is included. So I changed to: $dbpage =& DB_DataObject::staticGet('DataObjects_Pagedata',$page); And I no longer get any errors. The DB/DataObject.php file is only included through the Pagedata.php file, so it reconfirms that the /DataObjects/Pagedata.php file is included. Any ideas why this would happen? Thanks, Chris