So after a fruitless 3 hours - 3 phonecalls with microsoft surface report - I still do not have a touchpad, then as I was about to end the 3rd call I dragged left on a half circle that was on the right of the screen. On dragging it it came up with the right click menu that you usually get when right clicking on the display background and voila my touchpad was back. The touchpad now works for about 5 minutes before this half circle (sometimes a half box) appears again.
At least I know how to get my touchpad back, but it is still not fixed.
The offending half circle can be seen faintly oh the right.
This was occuring on the clean reset of the SP4 - no userinfo left etc
After dragging it left, my touchpad works, for 5 minutes(ish) until the offending half circle reappears again. - as soon as I use the pen the circle disappears however, however its action is still there on touching and dragging from where it was. Touchpad doesn't work until I drag to get the menu
Any thoughts will be appreciated
regards