First of all, great theme! Very stylish. I'm using Graphene 1.3.1.
This more of an FYI in case someone wants to look at it. I've upgraded to WP 3.2. I'm using SEO Ultimate, and when I did the WP upgrade, its admin tabs and "help dropdowns" went gone awry. The plugin makes the admin links into tabs, possibly via CSS, and they became just plain links after the upgrade. The help dropdowns don't work at all now.
This does not occur in other themes, I'm using, so maybe there's either something fancy that Graphene does in the admin area, or maybe some WP upgrade issue.