You are using an out of date browser. It may not display this or other websites correctly. You should upgrade or use an alternative browser.
Museum of the Game® & International Arcade Museum® Forums
I reloaded the software and I still have the I/O board error. So I guess there is either something wrong with the I/O board or the serial port on the PC.
Looking for a motherboard from a Dell optiplex 740 to test with???