xmlns prevents me parsing xml document

[daverage]

I have the following xml

<feed xmlns='http://www.w3.org/2005/Atom' 
xmlns:OpenSearch='http://a9.com/-/spec/opensearchrss/1.0/' 
xmlns:gd='http://schemas.google.com/g/2005' 
xmlns:gCal='http://schemas.google.com/gCal/2005'>
<entry>adasd a</entry>
</feed>

using this code

Dim xd As New Xml.XmlDocument
xd.Load("notes.xml")
MsgBox(xd.InnerXml)
Dim nodes As Xml.XmlNode = xd.SelectSingleNode("//entry")
MsgBox(nodes.InnerText)

I should be able to read the text in entry but I can only read it if i remove "xmlns='http://www.w3.org/2005/Atom'"

How can i get around this?