My had also a problem with the track ball. So I cleaned the ball and it improved significantly. But there are small rubbers in the mechanics inside and they were out, I will need to replace them one day. But I don’t have a replacement part now so it has to wait for later.
My had also a problem with the track ball. So I cleaned the ball and it improved significantly. But there are small rubbers in the mechanics inside and they were out, I will need to replace them one day. But I don’t have a replacement part now so it has to wait for later.