I haven't done a fresh install of the OS, only upgraded and I find it quite difficult to scroll as well. But what bothers me really (it's the first build I tried longer than one day, which is an improvement!!!) is, that OneNote isn't working as before. I can live with some touch unoptimized (or is it inoptimized??) things and login issues and such things. But I bought an SP3 to make quick (or longer) notes fast and easy, but sometimes the pen doesn't write and only erases or it doesn't erase if I want it to. And the worst thing that happened was, that the pen doesn't work at all and while I was trying to solve this problem, it deleted nearly half an hour of work done... Now it's the question if a fresh install of this build helps or if I should role back?..