IE 7 and 8 issue

[ghost]

i have a strange problem on one of my sites where by i am listing and paginating products and in ie7 and 8 once the pagination kicks in after all the products are added the list always seems to default to showing 5 products with a blank 5th one even though i have it set to display 9 products and 5 pages. Annoyingly i got no errors nothing to indicate whats going wrong and have the same pagination used on another page same site and not doing that so am at the brink of just looking for another pagination because i cant work out what the problem on that page is and was wondering if you might be able to shed some light. the page in question is http://www.rest-assured.co.uk/beds-mattresses/ and its working fine on http://www.rest-assured.co.uk/product-reviews/ (this is set to show 6 reviews instead of 9 that is the only difference and it works if i set it to 9 as well)