not necessarily, but I had also problems at the beginning. Only when I uninstalled netFramWork and had carried out a fresh installation, worked TuneECU.
Note: Adding signatures of new Maps (20375-20436) except Sprint GT.
No mistake in the map file generated by reading the ECU
(Bug only when the same base is open), corrected.
Thanks everyone for the pointers, but I am going to throw in the towel. I have tried every sort of combination and no luck. I assume that there is not a way to set the com port # for TuneEcu?