Wrong product showing when clicking from category

Hi,

I'm not sure if this issue has arisen from the upgrade to Version 1.5.1.3, however:

When I choose a category, then a product, the main product page displayed is for a different product in that category. It is happened on a lot of products. My website is at www.tradediscountbathrooms.com.

Has anyone else noticed this? Is there something I can do like a re-index or something?

Please help.

Double check your link tab in each product, seems like you have set them to the wrong categories...