When I try to use gpsmap with my Kismet cvs files I get this problem:
gpsmap -l ssid -L0 -G -t -S2 *.gps

Labeling networks...
gpsmap: annotate.c:786: GetTypeMetrics: Assertion `draw_info->text != (char *) ((void *)0)' failed.
Any ideas? I'm using the newest packages for Debian on my desktop to render, but the capture was done on a old laptop with Knoppix-STD.