Demo activation won't work - Joomla! Forum - community, help and support

got new demo activation code today,

http://demo.joomla.org/demo10/index.php ... 4e09f2849f

says either invalid or activated, when enter username/pwd combo says incorrect.  tried copy , paste browser link in email.

man, may databases has been emptied, try again, or install joomla anywhere or in machine, easier demo