Blury edges

Hello,

First : great pluggin, PhotoGallery is the first I found with good taste settings 🙂
But, as I have two pages with galleries working very good, a third one is bugging : the thumbnails’ edges are blury. The first two are just perfect but not the third… Non-sens for me…

Have you a sligh idea of what’s not working?

Thanks a lot

The page I need help with: [log in to see the link]