Problems with Nullable<T>

According to tracker #7536, Nullable support wasn't working, but was fixed
in the 201 build series. I'm using ReSharper 2.0.201.5728 in VS2005B2 and
I'm having trouble with Nullable support.

I've got a working solution with Nullable int and DateTime variables.
ReSharper's marking everything with them as an error.

1) the statement
Nullable date = new DateTime(2100, 1, 1); is marked as "Cannot convert source type 'System.DateTime' to target type 'System.Nullable 2) the statement Assert.AreEqual(0, Nullable.Compare(negVal, (Nullable)ae.ActualValue), "Failed compare"); is marked as "Cannot resolve symbol 'Compare'". This error's also not underlined in red in the editor. 3) the statement Nullable negVal = -1; is marked as "Cannot convert source type 'int' to target type 'System.Nullable]]>'

I just submitted this to Tracker, but was unsure if I should also post it
here.