i have an audigy2 sound card. the card works fine but i notice that it occasionally switches to 2.1 from 4.1 in the control panel. i notice that under device manager, the audigy changes from I/O range 8400 to A000 and switches back from time to time. it is weird because right now my 9800 pro is using I/O range starting at A000. and my audigy2 is at 8400. does anyone know what is going on?