[TxMt] Latex + preview question

[Christopher Brewster]

When I press apple button+R to typeset and view,
I get transferred to the Preview window but it does not show me the  
current pdf
only the previous one.
Is there someway to correct this so that it refreshes the pdf it is  
displaying?

Thanks,
Christopher

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Natural Language Processing Group,
Department of Computer Science, University of Sheffield