Hi , I have a Cisco 4500 M routers I tried to upgrade it's IOS and in the mean time was playing with it's registers.. I must have put in the wrong value because when reloaded all i get is fÿÌ`fÿÌæ†fæ†f3f0Ìþ˜~3ø˜˜<3˜†žf<À†øæž`?þž<þžàž˜žøž > PLEASE PLEASE HELP. what can i reload or reset to get my router back.. Thanks SO much