HI, not sure whats wrong but the module display some of the pictures - sometimes very few and other times most of them. What is causing this abnormality?

www.cookstownhighschool.org/new

Any help GREATLY appreciated as I have a few clashes on my site at the minute to solve!!

www.cookstownhighschool.org/new/index.php/news-mainmenu

On the above link when I go onto it, it shows very few images yet if I click on an article and then hit the back button it displays more images.

EDIT: This time it showed most of them but then on a different page where it had different news item it didn't show a couple and then once I clicked on them and went back again they were there! I work with it a bit and see if I can work out when this happens precisely - or maybe its my browser settings for all I know!

Think I'm having a clash with another module which has caused some funny behaviour with a few functions on the site. I'll leave it for now till I work out whats causing the other bugs and see how things work out.

I've some other clashes on the site to figure out and get support form elsewhere - I'll get them sorted and see if things run a bit smoother after that just in case.