layout of sub categories images differ on some pages

Hi, I can't work out why but if you click on my main category 'LEAD CRYSTAL GLASS TABLE TOP COLLECTIONS', there is then a space on the left before the first sub category image ('bubble base') is displayed. However when you click on the main cat 'GIFTS FOR THE HOME' all the sub cat images appear in a nice layout no odd space. I can't work out why this is?

Thanks!

p.s sorry, my site is at http://www.thegreatgiftshop.co.uk

Do you have an image in /images for the 'Arcadas' subcategory ?

In the source, you're calling this for that subcategory: img src="images/pixel_trans.gif"

Doh was me being blind, I'd forgotten to insert the 'arcadas' sub cat image so there was nothing there. Have put it in, whoops! Thanks for your help. :blush: