binary img in radrotator

[Growls]

any idea why the following throws a System.ArgumentException: Parameter is not valid.? basically, I have a grid, that when I click on the thumbnail, opens a radwindow which loads a page with the below code to generate a radrotator with a radbinary as an inner control. (first few lines are just retrieving the binary image data from the database, in this case sql server 2008, using the enterprise library.)

if (!string.IsNullOrEmpty(Request.QueryString["productID"]))
            {
                Database db = DatabaseFactory.CreateDatabase("sql");
                DbCommand mycommand = db.GetSqlStringCommand("SELECT mediaID,imageFull FROM core.productMedia WHERE (productID = @productID AND active=1 AND removed=0)");
                db.AddInParameter(mycommand, "productID", DbType.Int32, Request.QueryString["productID"]);
                DataTable mytable = db.ExecuteDataSet(mycommand).Tables[0];
                Debug.WriteLine("number of media " + mytable.Rows.Count.ToString());
                if (mytable.Rows.Count > 0)
                {
                    RadRotator myrot = new RadRotator();


                    foreach (DataRow myrow in mytable.Rows)
                    {
                        RadBinaryImage myimg = new RadBinaryImage();
                        myimg.DataValue = (byte[])myrow[1];
                        Debug.WriteLine("media " + myrow[0].ToString());
                        RadRotatorItem myitem = new RadRotatorItem();
                        myitem.Controls.Add(myimg);
                        myrot.Items.Add(myitem);

                    }
                    Panel1.Controls.Add(myrot);
                }
            }

[Growls]

never mind this one, I determined that the image wasn't stored to the database correctly, as such the exception was thrown when trying to load.