I changed my skin to Confluence Vertical last night. After that, the shutdown and reboot buttonswouldn’t work in XBMC. If I click one, the screen goes black for a second or two, and XBMC reappears on the screen, back at the home screen. It’s as if the shutdown/reboot buttons restart XBMC. I checked that “Shutdown Function” was set to “Shutdown” in the “Power Saving” menu.
Changing the skin back to Confluence restores the correct function of the buttons.
I’m not too bothered, as I can simply leave the skin as Confluence (although I do prefer Confluence vertical 🙂 )