DataContractSerializer - Controlling Output

I am working with the DataContractSerializer and I would like to know if it is possible to control the output a bit more.

Right now, I am getting a bunch of namespace references like d4p1 etc.

So when serializing a DirectX Vector, I might get:

Code:

---

<Vector xmlns:d4p1="http://schemas.datacontract.org/2004/07/Microsoft.DirectX" xmlns="...">
  <d4p1:X>1</d4p1:X>
  <d4p1:Y>1</d4p1:Y>
  <d4p1:Z>1</d4p1:Z>
</Vector>

---

I don't get these for all objects, only for some. I would like it to be consistent. I would like to be able to get rid of the d4p1 so that I just get:

Code:

---

<Vector>
  <X>1</X>
  <Y>1</Y>
  <Z>1</Z>
</Vector>

---

Is this possible? If so how can I do it?