AHA!
It's a major error in the documentation!!!!!
The correct command is NOT "VU(voice)" it is simply "V(voice)"
so should read.....
Code:
1 AM$="Loop: Let RA=V(1);Pause;Jump Loop"
2 Channel 1 To Screen Display 0
3 Amal 1,AM$
4 Amal On
Panic over, but will hopefully be useful for someone later on.............