Thanks very much, as it is an xps, the screen resolution was 1920x1080 HD so just had to reduce the resolution and font size text to 125% and works perfectly now. Very strange how the HD setting cant be used for inDesign but glad it is all fixed.
If you can function at full res on the screen, you should. There's a history of other issues related to running LCDs at less than maximum resolution, though they might not bite you. My memory is mostly thay have to do with multiple screens, but I've never been a victim and my memories on the symptoms are a bit fuzzy.
I'm old enough to need trifocals, and My desktop monitor is a 27" with 1920 x 1280 resolution that's pretty comfortable. I also have a 17.3" laptop that 1020 x 1080, and I was surprised that I'm able to work pretty well on that, too, but I would say that's partly due to the familiarity of the interface after all of these years.