Civilization IV: It says it works on vista, when i hit play it says log in with administrator rights?

I bought Civilization IV the other day that says it works on vista. I installed it with no problems. But when i hit play it says; please log in with administrator rights. I am the only one log in on this computer. i have all the rights. how do i fix this problem?Civilization IV: It says it works on vista, when i hit play it says log in with administrator rights?
i had the same problem. you hafta go to properties and find where it says allow and press that

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