Thanks for the advice. I installed Ethereal and compared the tcp packages when running Netscape and LWP, as well as LWP ones that work (a one-word street name) and those that don't (a two-word name). I am afraid, there is still nothing obvious so far. I have already implemented a workaround - now I use only the first word of the street name in a query, get a list of all records where the street name starts with that word, and look for the exact match. Hopefully, I'll eventually crack that bizarre issue..