Couple of questions more than issues:
1. It seems to take a little while to switch from HDG to NAV - I can reach the selected heading, click the HDG switch before the turn, which adds NAV in blue to the main screen underneath HDG, however, it can take a couple of minutes to then switch back into NAV mode. Any ideas on why this is the case?
2. Occasionally, I will hear a clicking sound and the system will change from NAV to HDG. Again, any idea what causes this?