This is a known bug in certain versions of the RIM OS. On my Tour, it was an issue in OS v4.7.1.40, but it appears to have been subsequently fixed in OS v4.7.1 53 (which, of course, was "released" by RIM or Verizon late last week but subsequently "pulled"). Matthias Marquardt (GPSLogger developer) and others have added a setting to their apps to optionally invert the altitude. |