Had a site that was running WPMU 2.9.2 that was migrated to WP 3.0. Have a number of sites, besides the root site and each site has a separate admin responsible for it. When logged in a as a Super Admin, I see the full list of items under Appearance (Themes, Widgets, Menus, etc). However, if logged is a Site Admin, the only item that appears under Appearance is Themes. I've disabled virtually all the plugins, but no luck there.
I downloaded a fresh copy of WP 3.0, installed it on my local machine, enabled multisite and created a couple of sites and associated site admins. Everything there is working as expected - the individual site admins can see the full list of items under Appearance.
I'm guessing this has something to do with migrating the site and some conflicting configuration/code. Has anyone else encountered this problem? Am I left with just doing a fresh install of 3.0 and importing all the content, or is there a simpler solution?