Thanks for the feedback. Typically this happens if a user has a special character in their Google Reader password, such as a / or a #.
If you have a special character in your password the only work around is to change it and try again.
Well, now that that's working, is it possible to have Viigo display my feeds by the categories as they appear in Reader? (e.g. News, Sports, etc. with the feeds inside each folder) Right now they are all just listed alphabetically.
Same here! I have no special characters in my Google password and I still receive the same "Unable to fetch Google Resource due to Authorization error". Can't find a fix anywhere and it seems to be quite common. It only happened to me once I deleted my Google feeds and tried to re-enter them. PLUS...I received a warning later that day from Google stating there was suspicious activity on my account, and it listed Viigo as the culprit! Have they blacklisted Viigo or something?