whenever I plan long flights, such as from vancouver to calgary, it will get a glitch in the navigation. after I read back the IFR clearance, nothing happens. ATC doesn't prompt me to contact ground, and if I manually tune to what I know is the ground frequency, it will still say no messages to transmit to anyone.
then, when I end the flight and file another flight plan via jet ways, it will say can't find a route and tell me to try VOR to VOR or direct GPS. I tried direct GPS and for some bizarre reason, the flight plan sends me to a place way out in the middle of the ocean, latitude 0 and longitude 0.
none of this happens when I plan shorter flights, say from detroit to cleveland or new york to Philadelphia.
any idea what's going on?