Help/Advice please - graphics glitch - Now fixed


So to be clear this is probably a windows/hardware issue and not locked to Cubase (10). However this happens mainly, and fairly extensively, on Cubase to the point of ruining any workflow/activity. I have tried the obvious rollbacks and unstalling recent apps etc but I have a number of graphic glitches that I can’t really describe :

The only addition to my hardware in the sig block is a Philips super ultrawide monitor 499P9 which has worked fine.

So any advice or help is most welcome. Thank you in advance