bigZ

Thank you for your reply. Yes. I used rubbing alcohol. If I do that cleaning again, I'll use denatured alcohol or acetone sparingly with Q-tips. OR, I'll also try operating the mount using NexRemote. I wonder if NexRemote bypasses the hand controller?

I wonder if the coiled cord connections between the hand controller and the hand controller port are flakey?

My CGEM's hand controller's buttons sometimes don't respond to pressing. I've taken apart the hand controller and cleaned all the contacts but still no help. Is the motor board's battery have anything to do with this problem? By the way, I replaced the motor board less than a year ago. The battery must've been a fairly new one, right?

Thank you all for your advice and encouragement. I finally found the compatibility troubleshooter by typing "compatibility mode" in the Search bar. I then simply had to enter the file name to get the process going. Wow, what a relief! It's a wonder I hadn't torn all of my hair out. Everything tested out okay. However, what happened to that nice lady's voice?