Cisco 1721 Console Problem

I have been trying to access a Cisco 1721 Router with a console cable. I tried using two console cables, both Hypererminal and Tera Term, and double checked the settings on these. All I get on the terminal screen is the following:

A#a+J ?#)i+k!?!kaR?
!aPc??)+!!i
H#??kkJc??????????????????????????????????????????
????????????????????????????????????????????????R?#aZ)a)k?@I!H

#koX"
kHa
ZAiaS ????????
?w??????????????????????????????????????????????????????????????????????????????
???????????+)}?????????????k??9?????????)????)??9)???????6???k?h?8??????
?i??????
????????????i6??????
??? ?????+??[????
4???h?????????)h??????????-????????
??l?,??,???(??,???(????(o??????)h???{????y??j?#?H?
j?)#a!ASBBHa
c!#R!aPHH`!z!+Aj?)#
a!irXJR@Bc!!!i@J[*a#)#a!irXZ@a+)!)#)
@J[*a#)#!#!a
@J[*a#)#a?BHa
##R!aZXZP*ca!kkI?"?
BH?
a)i?aI?? H)Js?@a#?i{!a?H)
+
@@?)!aaX ? ?c)?!ka!i@J[*a#)!)#)K#
BHa
c!!!?+H
*?!ckV
)a?

Has anyone seen this kind of output before or know how to fix it?