Has anyone got any software that can monitor all data from a serial port? I have looked around and found a couple of projects, but I can't find anything that can time stamp the data as well as log it. I am currently looking at slsnif-0.4.3, which seems to be able to do it only I am getting an error : Serial Line Sniffer. Version 0.4.3 Copyright (C) 2001 Yan Gurtovoy (ymg@xxxxxxxxxxxxx) Failed to open a pty: No such file or directory Can anyone tell me what this may be? I am in a race with an MS system to deliver the output - the project found the Winblows box to be unreliable (funny that!), and big mouth here said why don't you use a proper system! Thanks, Neil. -- Neil Marjoram. Systems Manager University College London Adastral Park Campus Martlesham Heath Ipswich Suffolk IP5 3RL