I am changing from a Celestron AVX mount to a CGX mount. I just got it yesterday, so am only playing with it in the house to get familiar with it. With the AVX mount, when it is done slewing or moving, it just sits there very quietly. However, with the CGX mount, after it is done slewing or moving, it continues to make a low volume noise like the motors are incrementally adjusting or trying to move. The noise seems to be mostly coming from the DEC part of the mount, but it is hard for me to tell precisely. It seems to never just stop and sit there quietly. Is this normal for the CGX mount or could there be something wrong with it?