David - I've only seen this error the one time, and the thread that you see on this site here http://vstoolsforum.com/forums/t/348.aspx is a conversation with Microsoft tech support over the issue. That's all I have for you. If you do get it solved, please post the answer here.
Actually, I'm in the habit of posting ALL the econnect issues that I have here. I post the problem as soon as I see it - then I post the answer when I find it. You'd be suprised how many times I search the internet for the answer to an issue and find it in this fourm. Half the time I wrote the original post, but forgot about it <smiles>
Welcome to the forum.