Thanks for the reply, I believe that version is one of the ones I tried after re-flashing to OS2007 and still got the "invalid NMEA data". The only way I could get older versions installed was to install the latest version and install the older version over it. Otherwise it wouldn't install because some file was missing. At this point, I think I'll wait to see if we get an update to OS2008 or to try a different BT GPS receiver.