I have installed and have been playing Grimm's Hatchery. However, I would like to play in window mode. When I click window mode, it blinks like it's changing and then disappears. I still have the tab on the bottom of my desktop where all active windows are. And when I hover over it, it shows that cute little popup small window showing the start screen. But it will not open the window. I can activate the window and use alt+enter to go back to full screen, but I can not play in window mode. Thanks in advance for helping! Edited to add: Playing on Windows Vista.