Hi there, I have next problem after upgrading from ubuntu server 12.04 to 12.10

all the arriving mails from sender which name has accents or other likely characters, do not display the sender, same hapens if character is in subject (subject is not diplayed), eventhough, if the body contains this kind of characters, these are seen with no problem.
At my address book all the names containing such characters desappeared, not the mail field, but only the name one and can not be edited. I tried editing the "/var/lib/squirrelmail/data/andres@chandia.net.abook", but the visualization results in strange characters, I've tried converting the file from iso-8859-1 to utf8, but nothing...

any idea of what could be happening, any help?

thanks in advance....

            andrés chandía
P No imprima innecesariamente. ¡Cuide el medio ambiente!