V. 4.0.4 is Pages '09, FWIW. I use it and I'm not having the same problem (MB 6,1, 2gig Ram, OS 10.6.4).
WARNING: If you see links to ads in the above post, blame the cheesy ad-linking software used by the owners of this website. I do not endorse these links. Don't click on them.
HOWEVER: occassionally I have in the past provided links to instructions or illustrations. I will not do so in future, in fact I will not be offering helpful advice for free just to have my words pirated until the sleazy ad linking desists. I will, however, answer PMs.