Currently Being ModeratedMay 19, 2012 9:07 PM (in response to Michael Hanson)
I've been trying to replicate your problem without success.
Would you please tell us what you mean by "lengthen" or send an image of your distorted slide?
Normally, to change the size of a slide you use the Document Inspector > Slide Size and Select from available options. Even if you customize the dimensions, the text is usually well behaved.
Currently Being ModeratedMay 19, 2012 10:32 PM (in response to bwfromspring hill)
I'm sorry, by "lengthen" I mean "increase the height of".
Indeed, I'm using custom slide sizes in the document inspector. When I choose a new custom size and increase the height, all the text on the slide gets larger.