This is an odd one. All the sudden when I create LINQ to SQL projects in Visual Studio would it not create the following line in the designer, up to three weeks ago or so, it used to create this line, now I have to manually do it. Then if I make changes in the dbml file it removes it and I have to manuallhy add again. huge pain. Here is the lines I am speaking of:

```
   public DataContext():
                    base(global::System.Configuration.ConfigurationManager.ConnectionString["SiteSqlServer"].ConnectionString, mappingSource)  
        {  
            OnCreated();  
        }  

```

I am using Visual Studio 2008 sp1.