I tried all the items at
http://wiki.warlight.net/index.php/Black_screen
and am still getting the black screen. Restarted browser, cleared browser cache, verified that Flash is working and up to date (11.4.402.287 on Windows), and that I can see the image here:
http://cdn.warlight.net/Images/WelcomeBackground.jpg
It worked up till a day ago, just not today.
Thanks!