RSS功能本地正常，传上服务器提示“源代码错误”，以前服务器上是好的，这两个突然不行了

RT，请问大家是怎么回事，本地是好的，传服务器上面就提示：“源代码错误”。是UTF-8的问题吗？public string GetRSS()
        {
            DataSet ds = bll.GetListTopNum(50, "");            StringBuilder strCode = new StringBuilder();
            strCode.Append("<?xml version=\"1.0\" encoding=\"utf-8\" standalone=\"yes\" ?>");
            strCode.Append("<rss version=\"2.0\" xmlns:dc=\"http://purl.org/dc/elements/1.1/\"");
            strCode.Append(" xmlns:trackback=\"http://madskills.com/public/xml/rss/module/trackback/\" ");
            strCode.Append(" xmlns:wfw=\"http://wellformedweb.org/CommentAPI/\" xmlns:slash=\"http://purl.org/rss/1.0/modules/slash/\">");
            strCode.Append("<channel>");
            strCode.Append("<title>专业团队打造</title>");
            strCode.Append("<link>http://" + Request.ServerVariables["SERVER_NAME"] + "</link> ");
            strCode.Append("<pubDate>Sun, 18 Sep 2011 11:35:09 GMT</pubDate> ");
            strCode.Append("<description>获得社会各界的广泛好评</description> ");
            //strCode.Append("<copyright>Copyright 2011</copyright> ");            foreach (DataRow row in ds.Tables[0].Rows)
            {
                string Id = row["NewsID"].ToString();
                string title = row["NewsTitle"].ToString();
                string description = row["NewsContent"].ToString();
                string pubdate =Convert.ToDateTime(row["NewsCreateTiem"]).ToUniversalTime().ToString("r");
                string ClassId = row["NewsTypeID"].ToString();
                strCode.Append("<item>");
                strCode.Append("<title>" + title + "</title>");
                strCode.Append("<link>http://" + Request.ServerVariables["SERVER_NAME"] + "/NewsDetaile.aspx?NewsID=" + Id + "</link>");
                //strCode.Append("<subject>" + description + "</subject>");
                strCode.Append("<pubDate>" + pubdate + "</pubDate>");
                strCode.Append("<description><![CDATA[" + description + " 关键词：111111" + "]]></description>");
                //strCode.Append("<category>" + ClassId + "</category>");
                strCode.Append("</item>");
            }
            strCode.Append("</channel>");
            strCode.Append("</rss>");
            return strCode.ToString();
        }