I think the opaque background behind the banner is a wonderful idea and you shouldn't remove it. However I feel that taking the background image and separating it as a new div by making the position absolute and the parent container relative, then adding a blur filter of about 4px or 5px and...
This is a common issue I may get when developing a custom CMS. What I think it could possibly be is that your SSO ticket isn't working correctly. I know when I developed my CMS... when a user would enter the client, the SSO ticket would be cleared from the database under their username. So when...