System.UriFormatException

Question

I am having trouble with an intermittent System.UriFormatException. The error seems to be caused by a call to an XML stored procedure in the format: http://[address of sql server xml]+[stored procedure] + [arguments, if any]&root=root When I look at the page on the offending server, I see the following error message: Target site: Void Parse() Error: Invalid URI: The URI scheme is not valid. Stack trace: at System.Uri.Parse() at System.Uri..ctor(String uriString, Boolean dontEscape) at System.Uri..ctor(String uriString) at System.Xml.XmlResolver.ResolveUri(Uri baseUri, String relativeUri) at System.Xml.XmlTextReader..ctor(String url, XmlNameTable nt) at System.Xml.XmlDocument.Load(String filename) at [namespace].Utils.showNewsTitlesXML(Int32 nCount, Int32 bHomepage, Int32 nCategoryID) at [namespace].home.Page_Load(Object sender, EventArgs e) My only solutions for resolving the error are to copy over the bin/.dll file from our staging server to the server with the error, or opening Web.config, making a minor change, and resaving. Obviously, I'd like a better solution - ideally one that avoids the problem altogether, or at the very least handles the exception gracefully. Any suggestions would be extremely welcome.