What is strange, is that I and some other users are not having any problems.
So, is there some solution we should try? Or maybe it has to do with the server itself?
Is the problem consistent for those users? Or does it come and go? Since only some users have this problem I would call this a connectivity or client issue.
Experience also tells me this may be something to do with iconv on your server. But I can't make that determination without a specific error message or some debugging. Is there anything recent in the log?