I have a 60-1 that i bought this new 2 1/4" trackball for and when i plug it into the con3 port i get nothing. I have tried the con4 port as well with no results also. the trackball is new and i have the correct harness, what am i doing wrong??? i did check the 5v and ground pins on the con3 port and the voltage was -5v. I'm not sure why because the -5 is not even hooked up. what am i missing???


