Additional Info.... (i also posted this in the Hack/Mods forum for Z1/Z2)
On my way home last night, still stopped almost exactly 20 minutes/miles into it....
Got home, opened the Z1/2 Service Menu... The Error logs where quite full of entries, non of which seemed to point to anything i could put my finger on (might as well been a core-dump)... I then cleared all the logs i could find...
This morning the Navtraffic made it all the way to work without failing. The clearing of the logs *MAY* have had something to do with it, but coud be purely coincidental... the only reason i bring it up is because clearing the logs seemed to have helped other folks in the past to fix erradic behavior... Who knows, just another datapoint... also don't know if the NavTraffic is now fixed or not, only time will tell.