When holding an extended conversation with someone, sometimes it is desirable to multitask and get some games in. Unfortunately, the loading screen for the game doesn't display messages, and so messages received while the game is loading seem to be inaccessible until you leave the game, where you can see the full history again.
Other than using an external chat system, or asking people to resend messages once you enter the game proper, both of which require extra effort on their part, is there a way to continue these conversations?