[support] Problems with Clean URLs

[Carl Parrish]

Okay so I didn't have mod_rewrite installed on my Apache box. Thought I 
was going to need to recompile and therefore it just wasn't worth it. 
Remembered that I had mod_so install. So I went ahead and installed 
mod_rewrite. It shows up in phpinfo() now so I assume that the install 
went okay. Enable cleanURLs in admin->settings. That seems to go okay 
and now all my links go to nice clean URL's except the URLs actually 
give me 404 errors. I'm assuming somthing isn't mapping correctly any 
idea how I can fix this?