New install of 1.5, insert fails with foreign key constraint

I am on the latest Ubuntu which has apache 2, mysql 5.0.22, and php 5.1.2.
I downloaded the latest Drupal, 4.7.3.
I downloaded the latest civicrm, 1.5.

I followed the installation instructions, and loaded these 2 sql files:

civicrm_41.mysql
civicrm_data.mysql

I went to CiviCRM Home on my drupal site, clicked to add a new Individual, and got the following
error:

Sorry. A non-recoverable error has occurred.

Database Error Code: Cannot add or update a child row: a foreign key constraint fails (`drupal_intranet/civicrm_log`, CONSTRAINT `civicrm_log_ibfk_1` FOREIGN KEY (`modified_id`) REFERENCES `civicrm_contact` (`id`)), 1452

Return to CiviCRM menu.

error

Array
(
[callback] => Array
(
[0] => CRM_Core_Error
[1] => handle
)

[code] => -1
[message] => DB Error: unknown error
[mode] => 16
[debug_info] => INSERT INTO civicrm_log (entity_table , entity_id , modified_id , modified_date ) VALUES ('civicrm_individual' , 1 , 102 , 20060913023105 ) [nativecode=1452 ** Cannot add or update a child row: a foreign key constraint fails (`drupal_intranet/civicrm_log`, CONSTRAINT `civicrm_log_ibfk_1` FOREIGN KEY (`modified_id`) REFERENCES `civicrm_contact` (`id`))]
[type] => DB_Error
[user_info] => INSERT INTO civicrm_log (entity_table , entity_id , modified_id , modified_date ) VALUES ('civicrm_individual' , 1 , 102 , 20060913023105 ) [nativecode=1452 ** Cannot add or update a child row: a foreign key constraint fails (`drupal_intranet/civicrm_log`, CONSTRAINT `civicrm_log_ibfk_1` FOREIGN KEY (`modified_id`) REFERENCES `civicrm_contact` (`id`))]
[to_string] => [db_error: message="DB Error: unknown error" code=-1 mode=callback callback=CRM_Core_Error::handle prefix="" info="INSERT INTO civicrm_log (entity_table , entity_id , modified_id , modified_date ) VALUES ('civicrm_individual' , 1 , 102 , 20060913023105 ) [nativecode=1452 ** Cannot add or update a child row: a foreign key constraint fails (`drupal_intranet/civicrm_log`, CONSTRAINT `civicrm_log_ibfk_1` FOREIGN KEY (`modified_id`) REFERENCES `civicrm_contact` (`id`))]"]
)

Is this release ready for prime time?