krpanoTools -1.19-pr16 WebGL problems

I'm trying to use VTour editor - seems it contains all I could wish!
Unfortunately my elementary problem is the appearing error message:
"HTML5 Browser with WebGL support required!".
I have enabled the flag <WebGL Draft Extensions> but nothing changed.
What shall I do to make it working?
I have build the stereo panorama using MakePano and MakeVtour BAT's - all is working perfectly!!!

For the moment I'm not able to manage tour hotspots editing directly XML,
and hoped to learn something from those generated by VTour editor...
Thanks a lot for your work!
Gianko


I'm using Chrome 67.0.3396.99 64 bit on W7