I usually conquer everyone else by the time UN gets built, but if the first vote is undecided, then how do i call a new one? Do i have to wait or something?
Assuming you built it, I think it's every 4 turns that you are asked if you want a vote. Yes, you have to wait.
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JB
I play BtS (3.19) -- Noble or Prince, Rome, marathon speed, huge hemispheres (2 of them), aggressive AI, no tech brokering. I enjoy the Hephmod Beyond mod. For all non-civ computer uses, including internet, I use a Mac.