Afzaal
Are we correct in assuming that you are connected directly on the console port of the 5300? When you change the baud rate in hyperterm did you stop and start the hyperterm session? I suggest that you stop and restart hyperterm and see if it clears up the problem. If it does not then there may be some mismatch between what the console speed really is and what you think that it is. I would then suggest that you try each of the console speeds, being sure to stop hyperterm and start it again each time you specify a different speed.
HTH
Rick
HTH
Rick