title: List<T>.Contains not showing overload
body: <p>I'm sure that I'm missing something simple here, but in Visual Studio 2008 on my current project only List.Contains(T) is present. Being able to use List.Contains(T, IEqualityComparer(T)) would save me a lot of grief. Any quick thoughts on this? Thanks. </p>
  
  <p>*edit:
  using System.Linq is not available to me. Is is possible that my project is stuck in .net 2.0 or something along those lines? Anyway to check &amp; fix?</p>