One Category Showing Full Article

Hi,

I have a weird problem.

I have Categories set up to show post excerpts (with 10 posts per page). However, one category lists 9 articles (there are only 9 posts in this category at present). The first 8 posts show excerpts, but the final one shows the entire article.

All other categories are displaying okay, i.e. excerpts only.

I've tried removing this post from the category then adding it to another category. It still shows the entire post, regardless of the category it's in.

The post is under Travel Outback Australia/Travel Tips in the navigation bar. It's the last (bottom) post.

It's obviously something within that post's code, however I can't find it. I've checked Simple CSS (empty) and additional CSS but can't see anything unusual.

Link to article is included in the "Your Website URL" box below.

Please help! Thanks.