My XX1 didn't use to be like this, but it is now (after an OS reinstall): whenever I move an object, an annoying left-behind outline always appears, after a quarter of a second or so. It's distracting as a hell, especially when demonstrating XX techniques for others. Yes, I have both X1tune and Xetup and have fiddled with all the plausible-sounding settings there, as well as trying settings in the Registry -- to no avail. Any tips?

Thanks!