I know the app isn't supported by amazon but it used to work with no problems in the first few weeks after I installed it. I don't know where did it go wrong. The page says "Sync is set up, but not syncing automatically. Toggle "Auto-sync" data in the menu of Android Settings > Account". I understand the message loud and clear. The problem is there is no such thing in the heavily modified version of Android version in Amazon Tablet and I've gone through all the settings in the Fire. I can't find anything. This is very frustrating as I used sync regularly. I'd be grateful for any suggestions.