Just many words of THANKS to the Bakers and everyone here....
X3c is INDEED a blast...!!!
am happy to report that X3c update fixed the grid refresh problem for me on the PRV. it is now back to the same behaviour as it was in X1d. Somehow it feels that the audio engine is a lot snappier too. Everything else works as it should including TouchDAW via an Android tablet.... effortless transition!!! No freezing, no pauses, no delays

The only thing i had to re-install was Amplitube 3.1.
although the clicks and pops thinngy is still there when ProChannel is expanded with mouse movements (only on certain projects)... i can live with it, by closing PC, when working on other tasks.... total non-issue

its sure is fortunate to come in to work everyday knowing that we have a great tool we can all depend on.
Keep playing, keep it LOUD!!!!
Cheers all!!!