MWM (the Motif Window Manager) was Athena's default window manager until July 2001, when Sawfish was made the default. The rest of the information here remains for historical purposes. Project Athena has decided to make MWM (the Motif Window Manager) the default window manager for users beginning with the spring term '90. MWM is a new window manager made available by the OSF (Open Software Foundation) to provide users with a more intuitive, industry-standard interface. Based closely on the Presentation Manager (PM) "look-and-feel", users of PM, MS-Windows, and Macintoshes should adjust quickly. Another reason for the change to MWM as the default is that the old default, UWM, is no longer supported by the X consortium, and further, is not ICCCM compliant. (The ICCCM is a manual that states how X programs should interact in order to behave as "good X citizens".) MWM *is* supported, by a large foundation, and is nearly ICCCM compliant. Features that new users will notice immediately are the title-bars visible on every window and the decorations that surround each window. Besides providing a 3D look, these decorations are functional. For example, moving a window can be accomplished by dragging it by its title-bar. To resize a window, grab the appropriate edge or corner and drag it. One of the main ideas behind MWM is to provide the user with as many options to perform the same action as possible. You will find that nearly anything can be accomplished with either the mouse or the keyboard, and there are several ways to do it. MWM, like UWM, provides keyboard shortcuts as well. It is also highly customizable, as is UWM. More information is available on any of the subjects mentioned above. There are drawbacks, though. MWM is a much larger program and so will use more of the available memory on your machine. It also runs slower, and may grab keyboard input when you don't expect it. We expect that some people will want to switch over, instead, TWM, and will provide directions on how to do that too, on request.