Check the .profile or .login of the user newwave on server silvermoon - it's probably setting something like 'stty erase ^H' which is invalid when you don't have a terminal associated with the process. If you find that it is something you want to keep, either set it up so it checks that there is a terminal device associated before running that command, or, ignore the error.
"While i doubt the stty errors are the problem stty should
never be called from a .cshrc file. stty belongs in .login
where it will only be called for login shells."