Well now that you put it that way, I honestly can't remember how I set mine up. Reading your first post, I went and checked my config and it shows @gmail.com. But I don't know if I put it there, or I assumed the same as you that just using everything before the @ would be fine. Regardless, mine shows it now. If I get up the motivation I'll disable and reconfigure mine using @gmail.com and see what happens.
Thanks for responding.