By try and read from each address, do you mean use some software that monitors a specific io address and can log it to a file? If so, can you recommend a software? Also, other than the Arduino, and my printer, I don't really have a device that can send deta to a parallel port.
Also, do you think the issue could be something to do with the speed of the port and the quality of connections? Since I am using a hand soldered "octopus cable" for connection to the board.
Lastly, I have heard that inpout32.dll is needed for pcie ports, do you know where and how to install that?