Can't autheticate Google Analytics

Hi Zack,
Love the plugin. Just what I was looking for.

I just have one problem – when I go to Constant Analytics Settings, and click on the “Begin Authetication” link, it takes me to Google, where I login, and then it redirects me to a page that says that Google has received a “malformed” request.

Here’s a link to a screenshot of what it shows me:

http://www.makeaprowebpage.com/wp-content/uploads/2011/07/errormsg.png

I definitely have registered makeaprowebpage.com, and I have been collecting google analytics data on that site for a number of months now.

Any idea whats going on here? Is there some way I can get around this by manually giving access in Google somehow?

Thanks,
-Matt