Inconsistent cursor changes in response to hotzones at the Main and Options menus.
Build r11869
On the main menu, the top four options all have hotzones that revert the cursor to the system cursor, while the Exit to Windows option shows its own gray variation on the standard animated blue cursor.
In the options menu, the "Music", "edge panning / fullscreen cursor capture", "fullscreen", and "cheat" each cause the cursor appearance to revert to the operating system cursor. All other options appear to stay with the blue animated cursor.
The Load Game & New Game menus all appear to have hotzones that respond correctly. Red cursor around deleting a game during game load, green around selecting a faction and purple when pointing at a faction which is not your selected faction.
No screenshots as I don't see an easy way to capture my cursor without getting into something like fraps and then extracting frames from that. I will do so if you need that.
Edit: This behavior is also seen on the "Dismiss" option of the pirate encounter dialog.