I am trying to get an Datanetics keyboard working with my Apple II computer. I am getting a mix of different character outputs on the screen when I type each key on the keyboard. Some keys give the proper output, some give no output and some give the wrong character for the key that was pressed. I would like to know if anyone has had a similar experience. I am going to try the following: 1) try the keyboard in my other older original Apple II that is working fine, 2) clean each key (remove cap, spray contact cleaner in the key assembly, work the key up and down). Any other suggestions?