This is a recent issue that I have been experiencing. I have an RX580 8gb GPU with an Asus Aurus b450 Elite Motherboard. I have done a recent upgrade and it seems since that upgrade (and since using dual monitors) that I am getting this issue. It mainly happens on my left-hand screen (which is my first monitor) which is a cheap Dell monitor. This issue also seems to mainly pup up in Discord but it has happened on other apps. Green or yellow dots appear either in a certain section of the screen (usually in the top half) Once changing apps or even discord threads they dissapear or even when I mouse over them they change location, flicker or disappear entirely. What could be causing this?