Hi , I'm trying to use the comport external in Linux and I'm finding it is quite slow. If I send 2 or 3 consecutive characters they have to be separated by about 3 msecs each using the delay object otherwise I get the message that says "Write error, maybe TX-OVERRUNS on serial line" . I want to run a fair bit of data out of the serial port so I'm using 115.2 kbaud. Could the problem be that I'm using a serial port via a USB to serial converter? Thanks. jim