There are many reasons computer applications freeze. Usually, your computer does not have enough memory to run the application. Other times, however, it's the application's fault. Perhaps it does not have the right resources (like images or music) to load a certain screen. At times, instead of showing an error and closing, the application looks for the missing resources over and over, causing it to freeze and stop working. When this happens, you may want to reinstall the program so that it can get the resources it needs to run properly.