Hi
I looked a little bit more into it by adding debug info in Locator.java (see attached patch). I tried different values of location-autofill (-1 thru 4) and it did not change anything.
At that point everything looks fine. Where else could the problem happen?
2011/03/02 16:15:09 FINE (Locator): C:\OSM\maps\Test.osm: Processing Ackworth
Yes I've found that a tiny extract containing just Ackworth and its surroundings works perfectly. I've downloaded the same us-midwest extract and am currently compiling that. Perhaps there is some other Ackworth that really causes the problem. I note that it is not close to the edge of the state, in fact rather near the middle. I've been lucky the second map tile contains a Mongolia, so I will go and look at that. ..Steve