I recently did a manual upgrade of wordpress from 3.1 to 3.3 and afterwards all i can see of my blog is the header image with the following error
Fatal error: Class 'Graphene_Description_Walker' not found in D:\Hosting\...\html\wordpress\wp-content\themes\graphene\header.php on line 140
Also when i go to the options menu from withing graphene i get the following error:
Fatal error: Call to undefined function graphene_get_settings() in D:\Hosting\...\html\wordpress\wp-content\themes\graphene\admin\options.php on line 99
I have disabled all plugins and removed / reinstalled the theme several times.