The Get Msg button is grayed out. The Get Msg button is grayed out. The Get Msg button is grayed out. It can't be clicked so I can't check for new mail.
Communicator is probably in the process of checking for mail.
As soon as the check is complete, the button should return to its normal appearance. If the Get Msg button is never available you might have Communicator set up to check for mail too often. Try changing the auto check frequency to something less frequent, like every 10 or 15 minutes. Highlight the incoming mail server and click Edit. Adjust the frequency under the General tab.