http://bugs.winehq.org/show_bug.cgi?id=23251
--- Comment #1 from Colin Wetherbee cww@denterprises.org 2010-06-18 23:49:54 --- I should mention, I suppose, that the expected behavior is that clicking on the Steam client update window should apply focus to it, and, following that, I should be able to click buttons within the window to perform Steam actions, close it, etc. If I click anywhere within the window while running a fullscreen game with Steam, focus appears to remain on the game.