У него с игрой две ошибки:
Game handles locking/unlocking (Windows-L) (Vista)
Alt+Tab functions normally (XP/Vista)
А именно:
Alt-tabbing or locking/unlocking Windows in fullscreen in Vista can produce an Access Violation error and crash. It can also cause the game to stay unresponsive and minimized to the taskbar.
This happens most easily in Vista, but was observed once in Win 7. It only happens about 40% of the time though.
И:
Alt-tabbing in XP in fullscreen produces an Access Violation error and crash. If this is done in-game, after the crash the Windows taskbar will display about a third up from the bottom of the screen. See screenshot and DxDiag tab.
This doesn't happen in windowed mode.
Можно как-то, если не исправить, хотя-бы уйти от этих багов? Так как если писать в сапорт юнити, не факт что исправят и не факт что это будет скоро...