When the default buffet framework theme is enabled, there are a few problems on the Dashboard, the 'Screen Options' tab does nothing when clicked and all sidemenu groups are collapsed and won't expand on click (I would guess a JS error).
This seems to be due to the buffet-framework action bf_add_dashboard which is activated in the-buffet-framework/includes/launcher.php
When line #17 is commented out or removed the Dashboard error ceases.
Thought you would want to know so the issue can be resolved.
Buffet version: 0.5.4