Since getting the new Creators Edition of Windows 10 in the middle of the week, occasionally when starting new applications (I think) a huge 96 point or so sans-serif A appears in the middle of the screen, then disappears after a second or so. It sort of feels like it might be connected to some kind of multi-monitor check, but I have just a single HDMI one using a boring old Intel motherboard graphics card. There are no obvious problems, it's just kind of annoying.
Has anyone else seen this?
