Ok, great. Sounds like it's auto-detecting the GPS radio then (defaults to auto-detect if no [gps] section in sys.txt) and the problem was simply because you didn't have any maps installed. Glad to hear that all is well now!
What do you think of Nextgen compared to iGo8 and/or Primo? Personally, I didn't like it - not as "finger friendly" as iGo8/Primo in my opinion.
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