I think I read somewhere that if you install the CIVA INS then the default doppler navigation becomes non operational. I've tried researching this but haven't found any answers. Is this true? If so, to fix it, do I just switch panel.cfg's when I want to use  DN or INS?

I tried using Doppler Nav for the first time in Months after only INS / VOR navigation, but I couldn't get it to work... So my guess is I'm either really dumb (which is possible  ;D ;D :D) or that I read correctly, and it doesn't work with INS installed.