Techniques for preventing unauthorized access to a server system using stolen passwords are provided. The MRAM block is configured to store a functional state of the at least one functional unit during a power down state of the at least one functional unit. Querying of each party as to location may be adjusted as to frequency of polling for example based on changing progress towards the destination. An elongate member extends from the first cutting structure into the first cavity toward the leading edge that includes a second cutting feature. In accordance with the invention, a premature atrial contraction is detected if the present AA interval is less than a specified percentage of a moving average of previous AA intervals and below a specified absolute limit value. An electromagnetically generated braking effect is applied to the trackball, which effect varies with the speed of the cursor to allow precise control of the cursor.