gpsd reports error on SKY or POLL requests

Binary package hint: gpsd

environment hint:
Linux ux1048 2.6.32-25-generic #44-Ubuntu SMP Fri Sep 17 20:05:27 UTC 2010 x86_64 GNU/Linux
Description: Ubuntu 10.04.1 LTS
Release: 10.04
gpsd:
  Installed: 2.92-4
  Candidat: 2.92-4
  Version table:
 *** 2.92-4 0
        500 http://de.archive.ubuntu.com/ubuntu/ lucid/universe Packages
        100 /var/lib/dpkg/status

gpsd reports a malformed error on certain requests for instance:

"?SKY;"
'"}lass":"ERROR","message":"Unrecognized request 'SKY;