OK I've been a fool!
I normally only look after data, so I bought a 7941G SIP 8.0(2) phone.
Just wanted to get a feel for its deployment so don't have aCall Manager.
I mistakenly put cmterm-7941_7961-sip.8-0-4SR3.zip o the TFTP server.
So now the TFTP logs show its not looking for the SIP files.
Is there a way of resetting it without CM