I set up the module just fine in my dev site running on MAMP on my Mac. When I copied everything up to the Rackspace server and ran the install and set it to the same settings, it looks like it should be running, but when I turn it on, all the rewritten URLs return 404 errors. I created the .htaccess file and placed it at the root of the site. I tried it with and without the .htaccess options. I've tried setting it to advanced mode, simple mode and mixed mode. I am sure mod_rewrite is on. I can see it listed in the php info file. The Rackspace server address is just an IP for now, rather than a domain name. Has anyone experienced this? Any ideas? Any help would be appreciated. Thank you.