Apache 403 only on /Search/Results.html

I have RT setup and everything works with the exception of Results.html. This returns a 403 error from Apache. It appears to have something to do with the URL query having apostrophes in it. I’ve googles and everything comes up with mod_security in apache, but I don’t have that installed. I’m out of ideas on how to fix this. Every other part of RT works except any that return search results.

Any Ideas?