plz help >> centralize/justify the text box on a slide...

[vick2006]

hello !

basically, all i'd like to know is how do i "centralize" the 'text box' on a slide in powepoint so that its exactly in the centre of the slide
(similar to the way in which you choose align vertically/horizontally when going into the setup of the print command to print the text exactly in the centre of a page)

i'm aware that it can be done manually by the dragiing the text box to the centre but that does not guarantee it's the in 'exact' centre
secondly the alignment/justification options solely apply to the 'text' inside the 'text box' and do not apply to the text box itself.

thirdly manually typing how far you want the box from the horizontal/vertical
(by right clicking>format placeholder>position) is of no use either, since it has to keep changing depending upon the size of the text.

so can anyone help me out ???