[YouTube-API] Can't get the YouTubeSample App to get authorized.

Let me appologize in advance if this issue does not belong here.  I want to use the YouTube Data API in my website and have ownloaded the YouTubeSample app for .Net.  I build it in VS2008 and when I run it, I get to the test page and click on the Google Login.  The next page then asks me whether or not I trust my localhost, to which I respond 'Allow'.  Next, it asks me for my Google username/password which I provide and get authenticated.  However, the next page gives me the following 401 authorization error:
Actual Results:

Server Error in '/YouTubeSample' Application.
________________________________________
The remote server returned an error: (401) Unauthorized.

[WebException: The remote server returned an error: (401) Unauthorized.]
   System.Net.HttpWebRequest.GetResponse() +5373789
   Google.GData.Client.GDataRequest.Execute() +129

Expected output:
I think I am suppose to see a list of videos (at least is what it looks like from the debugger).

This is probably some configuration error but I couldn't find any documentation on how to handle this issue and I've spent two days already since I downloaded/installed the Google Data API and YouTubeSample, without any success so far. 

It seems like I am being authenticated correctly but the access token that I am getting back does not authorize me to access YouTube.

I really appreciate any help or additional information on how I can solve this issue.
Thanks in advance,

pwcm

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