Post any defects you find in the released or beta versions of the ImageMagick software here. Include the ImageMagick version, OS, and any command-line required to reproduce the problem. Got a patch for a bug? Post it here.
Looks likely the bug is in gpsmap, not ImageMagick. However, we will take a look at the problem if you post a URL to wifimap.gif and kismet2.gps so we download them and reproduce the problem.