Well, I like some other people have noted that Basecamp 4.2.1
doesn't autoroute very well. I tried through many examples, and what
I found out was that intertile routing seems to be the major
problem. As soon as the route leaves one tile more than two times -
to go back into it, seems to crash the routing - if it is the
preferred way. Anyone else finds another solution?
(hope this image passes the size limit of the mailing list..)

--
keep on biking and discovering new trails
Felix
openmtbmap.org & www.velomap.org