mutt over hyperterminal

[Linda]

I am dialing in to an ubuntu 12.04 LTS machine that has mutt 
with hyperterminal on windows 7. When it displays the index 
some of the subjects are garbage characters instead of the 
subject. I tried set charset=UTF8 and set charset=ISO-8859-1 
but neither solves the problem. Does anyone have a 
suggestion on how to get this to work?
                 Thanks
                  Linda