Defender 110 puma speedo not working!?

Hi there, I have recently bought a 2007 defender 110 utility with the puma 2.4L engine. Bit I've just noticed that my speedo is not working. Does anyone know why this is?
Any help would be much appreciated!

Hi are all the other instruments working?
you could pull out your instrument binacle to check the connection. Theres just a few large hex bolts to remove, two at the top toward the windscreen nd two underneath the binacle. The instruments can then be wiggled free. All the wires are on a single connector, a bit like a small scart socket with a plastic lock clip. check that the pins are all in place and not bent.
After that im lost.
Best of luck. J

Ok thanks for the advice ill have a look and let you know

Thinking about it, if all your other instruments are working, and if you havnt had the binacle out before the problems probably at the other end of the wire. either the sensors gone or theres a bad connection near the sensor.