Two things:
For each forum (forum view, subforum view, thread view) view but not for instance profile or forum index view, the main tool bar with UserCP, PM, Chat etc is at the very bottom.
Also on those pages, there are 2 triangles after each expandable section rather than 1 for the top bar and none for the otherwise identical bottom bar.
Clicking on any of the main grey bar elements in the bottom bar results in the current page being reloaded instead of opening the respective section. Doing so also changes which options are available on the top (and bottom) bar thereafter until exiting the thread in question.
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