I have recently noted a "blurring" of text on a range of windows and applications on my Surface Pro 4 running Windows 10. Coincidentally I recently had my eyes tested and a new pair of specs prescribed. I was on the verge of returning to the optitcian when looking close at the display I realised that it was not just the text but the entire display which was "shaking." less than a millimetre and fast enough to give an impression of the display being blurred or out of focus. Now I've googled the issue I find it is a common prob which has given rise to a large number of wide ranging diagnoses and "suck it and see" solutions (not least of all from Microsoft themselves who along with many pundits seem to be scratching about for an explantion and a solution. I am growing tired of searching and trying to find a definitive solution amongst the growing number of guesses - does anyone know of one?