You can see the nearly complete site in question at http://188.8.131.52
If you access the far left category (knives A-E) all the sub categories show in two columns. The other categories keep one column that disappears at the bottom of the page with only some of the subcategories visible. The second category from the left has more subcategories than A-E so it doesn't appear to be related to the number of subcategories. It is probably a bug. Does anyone have a workaround?
Thanks for any help