Gallery thumbnails not resizing right.

In brief, gallery thumbnails on new articles are no longer square. On previous articles they remain square. Using file gallery.

I don’t know if I changed a setting, but it looks the same to me as previous articles.

Order is random and every time different.

Not square
http://westsidefocus.com/2012/08/rocky-mountain-cowgirl-company-in-old-colorado-city/

Previous article is how I would like new articles to look
http://westsidefocus.com/2012/08/verve-art-market-in-old-colorado-city/

Any ideas if I changed a setting accidentally?

(Everything is up to date.)