[wp-testers] 2.1 Upgrade Problems

[Jared Ferguson]

Receiving the following error when attempting to upgrade a blog to WP  
2.1:

Fatal error: Cannot redeclare validate_current_theme() (previously  
declared in /usr/home/jdf/public_html/serenityeducators/wp-includes/ 
theme.php:417) in /usr/home/jdf/public_html/serenityeducators/wp- 
admin/admin-functions.php on line 116

Never seen this before, been using WP for over two years now.    
Domain: www.serenityeducators.com

Thoughts?

</Jared>