I like Drawboard. Sometimes I like to read through my lecture notes and use different colours to highlight equations, important words, and other times I like to make new stuff in OneNote. I like varying my learning methods. Drawboard is nice to use when it works, but sometimes it annoys me when there are issues. The main ones are: 1) When I ink, sometimes that ink flashes, as in it disappears and reappears. 2) On less common occasions, I've inked, gone to the next page, and my ink on the previous page was gone. 3) Sometimes PDFs don't load. Sometimes I can scroll through every page in the PDF and it's already loaded, other times it wants to take a couple of seconds to load the page. This happens when I'm using the same PDF. Sometimes opening and closing the PDF fixes it, sometimes I try to restart my Surface - it's unreliable. Just for comparison, my i5-4670k desktop PC @4GHz with 8GB RAM can ink just fine without the flashing issue. Yeah, it's a much beefier CPU and it's overclocked, but OneNote doesn't flash ink at me. Anyone know how to solve these issues?