I'm having a strange problem using the word "compress" here:
WordPress seems to replace the word with a bunch of spaces. It happens in the title and the first occurence in the body of the entry. Additionally, using the word in the post slug made the permalink impossible to reach (though if there was a change in the slug, it didn't show up in the WordPress interface).
I got around it by starting the title of the post with the word "compression" so that the C would be capitalized (which apparently doesn't trigger the effect), and then capitalizing the word in the post body but making it lowercase using CSS. I had to take the "o" out in the slug because the slug is always lowercase.
This is kind of a strange problem. Anyone know what's up? I'd look at the PHP and track it down, but I can't from where I am.