sai

I had just bought a Surface Pro 3, mainly to use for art. Well, I had Paint Tool Sai up and running with N-Trig Wintab working fine. Soon after, I started getting this ripple effect whenever I pressed down.http://s18.postimg.org/m3kbzi9wl/3601707_orig.png I also own a Wacom Intuos 5, and have...