У самого проблема со звуком. В readme написано
Go to Start|Control Panel|System. Go to the Hardware tab. Click the Device Manager button. Under Sound, Video and game controllers, make sure audio hardware is present and does not show any errors. If there are errors, please resolve them using Device Manager or the Add Hardware Wizard found in Control Panel.
Ошибок нет, думаю только патч исправит для полной версии