Andy,
You just need to create a page size that has the same proportions as A1
like A4, A3 or A2
Then at 'print time' you instruct your 'printer properties/printer driver'
to scale your a4 (or whatever powerpoint is set to) slide to a1
see
Print posters or other large format output
http://www.pptfaq.com/FAQ00537.htm
cheers
TAJ Simmons
microsoft powerpoint mvp
awesome - powerpoint backgrounds,
http://www.awesomebackgrounds.com
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"Andy Pandy" <Andy
(E-Mail Removed)> wrote in message
news:FD5709C6-EE58-4407-A57C-(E-Mail Removed)...
>I have to create a poster for a display which has to be A1 size. How do I
> get Powerpoint to create a slide to carry this out?
>
> Thanks for any help!!