I am having issues with Apple Mail 7.1 (1827) where it doesn't always want to refresh and check for new mail. Pressing the "Get new messages for all accounts" button does nothing at all. The only way to get new messages is to restart the application. I have it set up with Gmail and have heard that there are some issues with Gmail and Mavericks but haven't heard this described as one of them. Any help is greatly appreciated.