I have added a second gmail account to the gmail app on my nexus. I don't want it to sync just to do it manually. It seems to be working ok as I can send emails. But I am unable to receive anything. Please help. Tried tapping refresh. A blue line moves across but nothing comes. Is it anything to do with the fact that usually the 2nd gmail account I have added I usually view in Windows Mail? Is there something I need to do different?