This is a brand new multi-network and I have 3 sites on camarata.us (main, ali and aric). I installed Domain Mapping from the WPMU Dashboard then Network Enabled it and went to it's config page. Saw the notice to copy sunrise.php and define the constant. Soon as I did that my server gave 500 everywhere. Commented out the define sunrise line and back to working. I really want to use this plugin and this is a new server. Please help.