TotalView(c) is a powerful, commercial-grade, portable debugger for parallel and multithreaded programs, available from Etnus (http://www.etnus.com/). TotalView understands multiple MPI implementations, including mpich. By ``understand'' is meant that if you have TotalView installed on your system, it is easy to start your mpich program under the control of TotalView, even if you are running on multiple machines, manage your processes both collectively and individually through TotalView's convenient GUI, and even examine internal mpich data structures to look at message queues [3]. The general operation model of TotalView will be familiar to users of command-line-based debuggers such as gdb or dbx.