Permalinks and Page problem

I am running WordPress 2.6.3 on an external server. I recently switched to permalinks. All the pages work perfectly except one. When I click on one of the pages, it says Page Cannot be Found. I’ve deleted it and recreated it, but still get the same error. All the other pages work fine, so I’m really confused.

When I switch back to default, the page works. The permalinks mode that I use is Month and Name.

Any ideas?

Thanks!
-R