I seem to have found a strange problem with the RS232 ports on my AV192R. While trying to discover why a certain piece of equipment will not reliably receive RS232 commands from the AV192R I have noticed that the length of the stop bit at the end of each ASCII character is less than 1 bit duration. Screenshot 1 shows the start of an RS232 command with the stop bit indicated by the on screen markers. You can see it is about half a bit in duration (the baud rate is 9600). The AV192R is configured for 1 stop bit but I have found that configuring 1.5 or 2 bits doesnt actually produce any change. This behaviour is the same on both the RS232 Input and Output ports. It is also the same regardless of whether the RS232 command is produced by relaying a received IR RC5 command or whether the command is generated using a macro. I have also found a second problem. When you generate RS232 commands using a macro you can select a delay between characters. If you configure delays below 10ms then no delay is produced, i.e. you get the half bit long stop bit followed immediately by the start bit of the next character. For settings of 10ms or more then a delay is produced. Screenshot 2 shows an RS232 command generated by a macro with a character delay of 9ms. Screenshot 3 shows the start of the same command with a delay of 10ms. Note that the delay for the first two characters is actually 5ms and it is then 10ms between the other characters. Any ideas? Steve maybe?