cant reset page setup

I

ingulita

Hi,
I'm trying to reset page setup of a blank document to A4
Portrait but it doesn't allow any changes, the following
error message is coming up:

'Increasing right margin causes last causes last column t
become too narrow in some sections having unevenly spaced
columns.'

I've decreased the margins as indicated in above message
but still no success.
Office XP
Any help appreciated.
 
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