Google reader atom feed was workign with earlier version. when I installed the new version (1.5.x), it stopped working. And yes, I am logged in with same user name in google in IE as well as firefox(default browser).
The error I get is Refresh feed 'Google Reader' failed with error: This XML document does not look like an RSS feed.
The xml document seemingly is not valid. The validation fails with feed validator and it mentions that the document is html doc with type as text/html. but if i use the same url in IE or firefox i can view the xml and not a html.