Hi PIP,
sorted it, I power cycled the modem and now get QAM.
See Stats below

is that all ok now????
Downstream Lock : Locked
Downstream Channel Id : 182
Downstream Frequency : 586750000 Hz
Downstream Modulation : QAM64
Downstream Symbol Rate : 6952 Ksym/sec
Downstream Interleave Depth : taps12Increment17
Downstream Receive Power Level : -7.8 dBmV
Downstream SNR : 36.9 dB
Upstream Lock : Locked
Upstream Channel ID : 4
Upstream Frequency : 29200000 Hz
Upstream Modulation : QAM16
Upstream Symbol Rate : 2560 Ksym/sec
Upstream transmit Power Level : 42.0 dBmV
Upstream Mini-Slot Size : 2