not sure about the power bar, but I remember the macro that force showed the extraactionbutton1 during the 2 DS boss fights with blizzard graphics. I would imagine that it will still function to show it again, and I'm sure that there is a macro/script that will show the bar. In fact I bet thats why its still there on my ui. Ill check in on that and report back later.
edit to link macro/script
http://www.wowinterface.com/forums/s...4&postcount=28
Edit again
Code:
/run PlayerPowerBarAltCounterBar:Hide()
Code:
/run PlayerPowerBarAltCounterBar:Show()
those maybe?