Hi guys. I made a 2 minute summary video to illustrate my problem, but I made it to ask the Japanese community, so I speak only in Japanese on the video; a better explanation is given in text below, but just from looking at the video, you may be able to figure out what I mean. [video=youtube;cGLIRiqNUtA]https://www.youtube.com/watch?v=cGLIRiqNUtA[/video] I use a Samsung 700t (full model name in signature), which has pen and touch input. When I was running Windows 8.0 on it, the WinTab drivers were great and I could draw a 2 pixel stroke just as easily as drawing a 100 pixel stroke (I use Clip Studio Paint, though I imagine any WinTab-based program has the same problem I'm about to describe). Under Windows 8.1, my existing tablet driver ceased to work (it couldn't align the cursor to the screen correctly due to landscape-portrait switching issues), so I had to change to a newer one supporting Windows 8.1. Accordingly, I tried a few drivers, uninstalling the previous one and rebooting after install each time. I tried: Wacom ISD Tablet versions 7.1.0-10 and 7.1.0-5, and also Wacom ISD Dual Touch 7.12-9. The latter one was suggested by the Samsung software update tool, while the former two were directly from the Wacom and Fujitsu T902 driver websites. These three drivers all have the same problem: the first 10 pixels or so of a stroke are left invisible until you continue into drawing a long stroke, at which time it does display the first 10 pixels as well as the rest of the stroke. If you try to only draw a 10 pixel stroke, however, it doesn't display anything. The problem is not to do with pen pressure; I think it's listening for a right-click or trying to distinguish a click from a click-drag, but I've disabled 'hold down the pen button for a right click', so I'm not sure what else to do; this problem also presents itself on the desktop outside of Clip Studio Paint, preventing me making 10 pixel selection boxes. Anybody got any suggestions?