Can you please be more specific about the error you receive with Silverlight? Does DisplayFusion still work? I can't imagine how installing DisplayFusion would affect Silverlight - what happened exactly?
In an effort to cleanup the DisplayFusion forum, this topic is being locked and archived because it applies to an older version of DisplayFusion. If you are using the latest version of DisplayFusion and would still like some assistance, please create a new topic and I'll be happy to help you out. Thanks!