I just bought a targus ultra mini mouse. Very very tiny usb mouse. When I plug it in my PowerBook 12, the mouse will pause and I get no movement for a few seconds untill I move it around for a few seconds. This will happen again when I type something and leave the mouse not moving for a little bit, the mouse doesn't move untill i move it around. Has anyone else noticed this? Is this the mouse problem or powerbook problem? I get the same problem with my brother's mouse. ???