SVN 3218 White Screen
This issue seems to be back for me. This happened many revisions ago. When ever I add a new host or update a new host I get a white screen when the changes happen. I have to manually hit the refresh button in the browser to see the changes that were made.
The latest svn fixed the issue.
Maybe clear the browser cache completeley? Do you see any error messages in your apache log files (see Tom’s signature if you don’t know where to find them)?