Nexus radio fault

I went out to the car this morning to find that the Nexus appears to have developed a fault in that the radio is coming up with no stations or reception however everything else works on the unit (CD/Satnav).

It will not allow me to search manually or use AS to refill the station list.

It did appear to have received TP info at 6.13 and 7.13 but no reception when I went out at 9.15