Edited sentence: No patch has been released by Microsoft.Running these games with Windows XP compatibility settings or using alt-tab in rare cases can help with the problem but does not completely eliminate it in Vista.There is no known fix in Windows 7.While it is possible to run Age of Empires II: The Age of Kings and Age of Empires II: The Conquerors on Windows Vista and Windows 7, a compatibility problem with the games graphics engine will result in graphical errors also known as "toxic grass" (grass will be red and green pixelated and oceans will look pink, purple and cyan-blue)