Hey guys, I picked up three gt o5 boards from a guy out in texas. There is a problem with all of them. First board, resets over and over, nothing ever comes on the screen and it just does this continually. The second board will come up fine, go through the hd test, but then goes to the adjustables menu right away and will not exit, its as if the service button is continually held down. Finally the third board, when the trackball is hooked up, I get nothing on the right side in the way of action out of the trackball, instead it credits the game with credits and increases the volume, this I can monitor in the controls test menu. I used the same hard drive on all three. Any help on any of these issues would be great. Also wondering if a deer hunter could be switched with the one where the trackball is servicing credits and adjusting the volume, I figured the gun hooks up somewhere else but I am not sure. Thanks guys and let me know.