Backtrack 5 r3 Gnome 64-bit (fresh installation on its own partition)
Macbook Pro mid 2010
GPS: GlobalSat BU-353

trying to install gpsd-clients

apt-get install gpsd-clients

results in

dpkg: error processing /var/cache/apt/archives/gpsd-clients_2.92-4_amd64.deb (--unpack):
trying to overwrite '/usr/bin/xgps', which is also in package xgps 0:1.1.5-bt0
Processing triggers for menu ...
Errors were encountered while processing:
E: Sub-process /usr/bin/dpkg returned an error code (1)

What shuld i do to fix this !!

ty in advance