I'm playing Magic: The Gathering - Duels of the Planeswalkers 2012 on PC via Steam, and I'm having a hard time connecting to friends. Whenever I create a new game, set a player slot to Private and click Invite, nothing happens. According to Gamespot, clicking Invite should bring up a Steam UI to let me select a friend. This is not the case, and I have to instead create a public game and hope my friend sees me and joins.
The game is running in "windowed" mode (fullscreen is turned off), and it doesn't seem to matter whether friends are online or playing the game - it still doesn't work. Everything else in the game works, including public online play.
Does anyone have a fix for this?