FSAI separation FS9

I got an issue with Armando's nice program. As known its interface has a column, where it is shown the distance to destination of an AI aircraft. As it is now, it shows inconsistent values, e.g. 6037 NM instead of few miles from AI destination. The adjacent column "Distance to you" shows the right values.

In the past I had gotten it working properly just adding the traffictoolbox.dll in FS9 modules. In the next computer systems

I had , has never worked as it meant to, despite I still use traffictoolbox.dll in FS9 modules.

Any ideas how to solve it ?

Thanks for your time.