Thanks, this did the trick. >>>>> "SH" == Scott Henry <scotty@sgi.com> writes: SH> /dev/tty is a psuedo-tty that is always the current tty SH> (whether a real one, a serial port, or a pty). You need read SH> and write access to it. -- Joseph M. Reinhardt joe-reinhardt@uiowa.edu Department of Biomedical Engineering 1402 Seamans Center University of Iowa Iowa City, IA 52242 Phone: 319-335-5634 Fax: 319-335-5631