Page not excluded

I installed and activated your Search Exclude plugin.

Then, I went to the page I wished to exclude from searches, and checked the ‘Exclude from search’ checkbox in your metabox in the page’s editor page, and then updated the page.

But, when I do a search for the first word in the page’s title, it comes up with that page in the search.

What am I doing wrong?

I did not have a caching plugin installed, but I do now. No difference before or after.

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