We are moving our JIRA and Confluence installation to a new server. I installed JIRA successfully and we are testing. I am now trying to install Confluence. I ran the Confluence windows setup using the atlassian-confluence-5.7.4-x64 version. It steps through the installation wizard fine and the service starts, but then when I load the site into the web browser I get a blank page. I have tried restarting the service, restarting the server, and even uninstalling and re-installing. What is happening with the installation?